NOTICE OF PRELIMINARY MARKET CONSULTATION PURSUANT TO ART. 77 OF LEGISLATIVE DECREE 36/2023 FOR THE AWARDING OF THE CONTRACT FOR THE SUPPLY OF A LARGE-SECTION WIND TUNNEL WITH NON-STATIONARY FLOW CONTROL CUP B83C23001590001 CUI F80209930587202400054

The Department of Mechanical and Aerospace Engineering in Italy from Europe region has released this tender for The system to be acquired must generate different types of flows, allow the acquisition of related data, and analyze them. Therefore, the system must features a modular and scalable fan-matrix architecture, enabling the simulation of spatially and temporally variable velocity profiles through the adjustment of the individual fans. In terms of general configuration, the wind tunnel must be composed of a series of independent blocks, each with its own load-bearing structure, mounted on wheels, and equipped with quick-connect couplings to allow rapid assembly or reconfiguration to achieve the desired test configuration. Specifically, the system must include: Ventilation wall: must be composed of ventilation modules containing small counter-rotating fans that allow precise local adjustment. Flow straightener, for turbulence reduction and flow velocity profile uniformization. Two interchangeable test sections consisting of a convergent section + test section with transparent walls and lower slots to facilitate observation and visual inspection, as well as to allow the insertion of instrumentation. Divergent section divisible into multiple sections. In its maximum footprint configuration, the system must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measuring instrumentation and integrated software to automate tests and create real-time control cycles. The specific required characteristics for the individual parts of the system are: Modular ventilation wall with counter-rotating fans, designed to allow precise local flow adjustment. The total power of the fan wall must be approximately 40 kW; Flow straightener, equipped with cleaning channels; Two interchangeable test sections composed of: a. Configuration 1: Convergent 1 with a contraction ratio of 1.87 paired with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a contraction ratio of 6.7 paired with Test Section 2, with a maximum length of 1.5 meters. Divergent section, with an inlet cross-section equal to the outlet cross-section of Convergent 2 and a length such as to obtain an outlet section equal to 3 times the inlet section. From an interface and usability perspective, the following is required: The offer must include integrated software with a web graphical user interface (GUI) requiring no installation, as well as a Python 3 interface to automate tests and create real-time control cycles; The offer must include advanced measuring instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functional without software. All system components must be supplied with power cables and connection cables. (ITA) The system to be acquired must generate different types of flows, allow the data relating to them to be acquired and analyzed. Therefore,The system must have a modular and scalable fan matrix architecture, allowing for the simulation of spatially and temporally variable velocity profiles through the regulation of the individual fans. In terms of general configuration, the wind tunnel must consist of a series of independent blocks, each with its own load-bearing structure, mounted on wheels, and equipped with quick-release couplings that allow for rapid assembly or reconfiguration to achieve the desired test configuration. Specifically, the following must be present: 1. Ventilation wall: it must be composed of ventilation modules containing small, counter-rotating fans, allowing for precise adjustment; 2. Flow straightener, to reduce turbulence and even out the velocity profile; 3. Two interchangeable test sections composed of a convergent section and a test section with transparent walls and lower slits to facilitate observation and visual inspection as well as to allow for the insertion of instrumentation; 4. Diverging section divisible into multiple sections. The system, in its largest configuration, must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time regulation cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, composed to allow for precise flow regulation. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections composed of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface to automate tests and create real-time control cycles; - the offer includes advanced measurement instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be equipped with power and connection cables.which allows the simulation of spatially and temporally variable velocity profiles through the regulation of the individual fans present. In terms of general configuration, the wind tunnel must be composed of a series of independent blocks, each with its own load-bearing structure, mounted on wheels, equipped with quick-release couplings that allow for rapid assembly or reconfiguration to obtain the desired test configuration. In detail, the following must be present: 1. Ventilation wall: it must be composed of ventilation modules, containing small counter-rotating fans, which allow for precise adjustment 2. Flow straightener, to reduce turbulence and uniform the velocity profile 3. Two interchangeable test sections composed of a convergent section + test section with transparent walls and lower slits to facilitate observation and visual inspection as well as to allow the insertion of instrumentation 4. Divergent section divisible into multiple sections. The system, in its largest configuration, must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time regulation cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, designed to allow precise flow regulation. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections consisting of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface to automate tests and create real-time control cycles; - the offer includes advanced measurement instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be supplied with power and connection cables.which allows the simulation of spatially and temporally variable velocity profiles through the regulation of the individual fans present. In terms of general configuration, the wind tunnel must be composed of a series of independent blocks, each with its own load-bearing structure, mounted on wheels, equipped with quick-release couplings that allow for rapid assembly or reconfiguration to obtain the desired test configuration. In detail, the following must be present: 1. Ventilation wall: it must be composed of ventilation modules, containing small counter-rotating fans, which allow for precise adjustment 2. Flow straightener, to reduce turbulence and uniform the velocity profile 3. Two interchangeable test sections composed of a convergent section + test section with transparent walls and lower slits to facilitate observation and visual inspection as well as to allow the insertion of instrumentation 4. Divergent section divisible into multiple sections. The system, in its largest configuration, must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time regulation cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, designed to allow precise flow regulation. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections consisting of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface to automate tests and create real-time control cycles; - the offer includes advanced measurement instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be supplied with power and connection cables.In terms of general configuration, the wind tunnel must consist of a series of independent blocks, each with its own load-bearing structure, mounted on wheels, and equipped with quick-release couplings that allow for rapid assembly or reconfiguration to achieve the desired test configuration. Specifically, the following must be present: 1. Ventilation wall: it must be composed of ventilation modules containing small counter-rotating fans, which allow for precise adjustment; 2. Flow straightener, to reduce turbulence and even out the velocity profile; 3. Two interchangeable test sections composed of a convergent section and a test section with transparent walls and lower slits to facilitate observation and visual inspection as well as to allow for the insertion of instrumentation; 4. Diverging section divisible into multiple sections. The system, in its largest configuration, must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time regulation cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, designed to allow precise flow regulation. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections consisting of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface to automate tests and create real-time control cycles; - the offer includes advanced measurement instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be supplied with power and connection cables.In terms of general configuration, the wind tunnel must consist of a series of independent blocks, each with its own load-bearing structure, mounted on wheels, and equipped with quick-release couplings that allow for rapid assembly or reconfiguration to achieve the desired test configuration. Specifically, the following must be present: 1. Ventilation wall: it must be composed of ventilation modules containing small counter-rotating fans, which allow for precise adjustment; 2. Flow straightener, to reduce turbulence and even out the velocity profile; 3. Two interchangeable test sections composed of a convergent section and a test section with transparent walls and lower slits to facilitate observation and visual inspection as well as to allow for the insertion of instrumentation; 4. Diverging section divisible into multiple sections. The system, in its largest configuration, must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time regulation cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, designed to allow precise flow regulation. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections consisting of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface to automate tests and create real-time control cycles; - the offer includes advanced measurement instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be supplied with power and connection cables.Specifically, the following must be present: 1. Ventilation wall: it must be composed of ventilation modules containing small counter-rotating fans, which allow for precise adjustment 2. Flow straightener, to reduce turbulence and even out the velocity profile 3. Two interchangeable test sections composed of a converging section + test section with transparent walls and lower slits to facilitate observation and visual inspection as well as to allow for the insertion of instrumentation 4. Diverging section divisible into multiple sections. The system, in its largest configuration, must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time adjustment cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, composed to allow for precise flow adjustment. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections consisting of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section equal to three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web graphical interface, which does not require installation, as well as a Python3 interface to automate tests and create real-time regulation cycles; - the offer includes advanced measuring instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of the velocity and 3D orientation of the flow, detectable by the software but also functioning without software. All system components must be equipped with power cables and connection cables.Specifically, the following must be present: 1. Ventilation wall: it must be composed of ventilation modules containing small counter-rotating fans, which allow for precise adjustment 2. Flow straightener, to reduce turbulence and even out the velocity profile 3. Two interchangeable test sections composed of a converging section + test section with transparent walls and lower slits to facilitate observation and visual inspection as well as to allow for the insertion of instrumentation 4. Diverging section divisible into multiple sections. The system, in its largest configuration, must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time adjustment cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, composed to allow for precise flow adjustment. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections consisting of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section equal to three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web graphical interface, which does not require installation, as well as a Python3 interface to automate tests and create real-time regulation cycles; - the offer includes advanced measuring instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of the velocity and 3D orientation of the flow, detectable by the software but also functioning without software. All system components must be equipped with power cables and connection cables.In its largest configuration, it must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time regulation cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, composed to allow for precise flow regulation. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections composed of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface to automate tests and create real-time control cycles; - the offer includes advanced measurement instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be equipped with power and connection cables.In its largest configuration, it must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measurement instrumentation and integrated software to automate tests and create real-time regulation cycles. The specific characteristics required for the individual components of the system are: 1. Modular ventilation wall with counter-rotating fans, composed to allow for precise flow regulation. The total power of the fan wall must be approximately 40 kW; 2. Flow straightener, equipped with cleaning channels; 3. Two interchangeable test sections composed of: a. Configuration 1: Convergent 1 with a convergence ratio of 1.87 combined with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a convergence ratio of 6.7 combined with Test Section 2, with a maximum length of 1.5 meters. 4. Divergent section, with an inlet section equal to the outlet section of Convergent 2 and a length such as to obtain an outlet section three times the inlet section. From an interface and usability perspective, the following are required: - the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface to automate tests and create real-time control cycles; - the offer includes advanced measurement instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be equipped with power and connection cables.- the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface for automating tests and creating real-time control cycles; - the offer includes advanced measuring instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be supplied with power and connection cables.- the offer includes integrated software with a web-based graphical interface, requiring no installation, as well as a Python3 interface for automating tests and creating real-time control cycles; - the offer includes advanced measuring instrumentation (multi-hole digital pressure probe) for high-frequency acquisition of flow velocity and 3D orientation, detectable by the software but also functioning without software. All system components must be supplied with power and connection cables. with tender notice no. 695848-2026 published on 09 Oct 2026. The tender is due to expire on 06 Jan 2027. This tender is sourced from TED Europa and is eligible for suppliers interested in Machines and apparatus for testing and measuring. Interested bidders can obtain further information including complete bid documents or ways to participate by registering on Tender Impulse and referencing via Tender Impulse ID 15393560.