2 research outputs found

    CFD MODELLING OF FORMULA STUDENT CAR INTAKE SYSTEM

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    Formula Student Car (FS) is an international race car design competition for students at universities of applied sciences and technical universities. The winning team is not the one that produces the fastest racing car, but the group that achieves the highest overall score in design, racing performance. The arrangement of internal components for example, predicting aerodynamics of the air intake system is crucial to optimizing car performance as speed changes. The air intake system consists of an inlet nozzle, throttle, restrictor, air box and cylinder suction pipes (runners). The paper deals with the use of CFD numerical simulations during the design and optimization of components. In this research article, two main steps are illustrated to develop carefully the design of the air box and match it with the suction pipe lengths to optimize torque over the entire range of operating speeds. Also the current intake system was assessed acoustically and simulated by means of 1-D gas dynamics using the software AVL-Boost. In this manner, before a new prototype intake manifold is built, the designer can save a substantial amount of time and resources. The results illustrate the improvement of simulation quality using the new models compared to the previous AVL-Boost models.The results illustrate the improvement of simulation quality using the new models compared to the previous AVL-Boost models.

    3D Simulation of Gas Flow into the Formula Student Car Intake System

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    Β«Π€ΠΎΡ€ΠΌΡƒΠ»Π° Π‘Ρ‚ΡƒΠ΄Π΅Π½Ρ‚Β» – это ΠΌΠ΅ΠΆΠ΄ΡƒΠ½Π°Ρ€ΠΎΠ΄Π½ΠΎΠ΅ сорСвнованиС ΠΏΠΎ ΠΊΠΎΠ½ΡΡ‚Ρ€ΡƒΠΈΡ€ΠΎΠ²Π°Π½ΠΈΡŽ Π³ΠΎΠ½ΠΎΡ‡Π½Ρ‹Ρ… Π°Π²Ρ‚ΠΎΠΌΠΎΠ±ΠΈΠ»Π΅ΠΉ для студСнтов унивСрситСтов ΠΏΡ€ΠΈΠΊΠ»Π°Π΄Π½Ρ‹Ρ… Π½Π°ΡƒΠΊ ΠΈ тСхничСских унивСрситСтов. ΠŸΠΎΠ±Π΅ΠΆΠ΄Π°Π΅Ρ‚ Π½Π΅ Ρ‚Π° ΠΊΠΎΠΌΠ°Π½Π΄Π°, которая создаст самый быстрый Π³ΠΎΠ½ΠΎΡ‡Π½Ρ‹ΠΉ Π°Π²Ρ‚ΠΎΠΌΠΎΠ±ΠΈΠ»ΡŒ, Π° Π³Ρ€ΡƒΠΏΠΏΠ°, которая добиваСтся Π½Π°ΠΈΠ²Ρ‹ΡΡˆΠ΅Π³ΠΎ ΠΎΠ±Ρ‰Π΅Π³ΠΎ Π±Π°Π»Π»Π° ΠΏΠΎ ΠΊΠΎΠ½ΡΡ‚Ρ€ΡƒΠΈΡ€ΠΎΠ²Π°Π½ΠΈΡŽ, Π³ΠΎΠ½ΠΎΡ‡Π½Ρ‹ΠΌ показатСлям. НапримСр, располоТСниС Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½ΠΈΡ… ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ², ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ аэродинамики систСмы впуска Π²ΠΎΠ·Π΄ΡƒΡ…Π° ΠΈΠΌΠ΅ΡŽΡ‚ Ρ€Π΅ΡˆΠ°ΡŽΡ‰Π΅Π΅ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ для ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ характСристик автомобиля Π½Π° Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… Ρ€Π΅ΠΆΠΈΠΌΠ°Ρ… Ρ€Π°Π±ΠΎΡ‚Ρ‹. БистСма впуска Π²ΠΎΠ·Π΄ΡƒΡ…Π° состоит ΠΈΠ· впускного ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠ°, Π΄Ρ€ΠΎΡΡΠ΅Π»ΡŒΠ½ΠΎΠΉ заслонки, ограничитСля мощности (рСстриктора), Π²ΠΎΠ·Π΄ΡƒΡˆΠ½ΠΎΠΉ ΠΊΠ°ΠΌΠ΅Ρ€Ρ‹ ΠΈ впускных ΠΊΠ°Π½Π°Π»ΠΎΠ² Π³ΠΎΠ»ΠΎΠ²ΠΊΠΈ Ρ†ΠΈΠ»ΠΈΠ½Π΄Ρ€Π°. Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ рассматриваСтся использованиС числСнного модСлирования CFD ΠΏΡ€ΠΈ конструировании ΠΈ ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ этих ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ². ΠŸΡ€ΠΎΠΈΠ»Π»ΡŽΡΡ‚Ρ€ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ Π΄Π²Π° основных шага, ΠΏΡ€Π΅Π΄ΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°Π΅ΠΌΡ‹Ρ… для Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ конструкции Π²ΠΎΠ·Π΄ΡƒΡˆΠ½ΠΎΠΉ ΠΊΠ°ΠΌΠ΅Ρ€Ρ‹ ΠΈ сопоставлСния Π΅Π΅ с Π΄Π»ΠΈΠ½ΠΎΠΉ Π²ΡΠ°ΡΡ‹Π²Π°ΡŽΡ‰Π΅ΠΉ Ρ‚Ρ€ΡƒΠ±Ρ‹ для ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ крутящСго ΠΌΠΎΠΌΠ΅Π½Ρ‚Π° Π²ΠΎ всСм Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ Ρ€Π°Π±ΠΎΡ‡ΠΈΡ… Ρ€Π΅ΠΆΠΈΠΌΠΎΠ². Π’Π°ΠΊΠΆΠ΅ данная систСма впуска Π±Ρ‹Π»Π° ΠΎΡ†Π΅Π½Π΅Π½Π° акустичСски ΠΈ смодСлирована с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ 1-D Π³Π°Π·ΠΎΠ²ΠΎΠΉ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ с использованиСм ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ½ΠΎΠ³ΠΎ обСспСчСния AVL Boost. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, ΠΏΠ΅Ρ€Π΅Π΄ созданиСм Π½ΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡ€ΠΎΡ‚ΠΎΡ‚ΠΈΠΏΠ° впускного ΠΊΠΎΠ»Π»Π΅ΠΊΡ‚ΠΎΡ€Π° ΠΏΡ€ΠΎΠ΅ΠΊΡ‚ΠΈΡ€ΠΎΠ²Ρ‰ΠΈΠΊ ΠΌΠΎΠΆΠ΅Ρ‚ ΡΡΠΊΠΎΠ½ΠΎΠΌΠΈΡ‚ΡŒ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ΅ количСство Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ ΠΈ рСсурсов. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΈΠ»Π»ΡŽΡΡ‚Ρ€ΠΈΡ€ΡƒΡŽΡ‚ ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΠ΅ качСства протСкания Ρ€Π°Π±ΠΎΡ‡Π΅Π³ΠΎ процСсса двигатСля ΠΏΡ€ΠΈ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π΅Π³ΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈ Π² AVL BoostFormula Student Car (FS) is an international race car design competition for students at universities of applied sciences and technical universities. The winning team is not the one that produces the fastest racing car, but the group that achieves the highest overall score in design, racing performance. The arrangement of internal components for example, predicting aerodynamics of the air intake system is crucial to optimizing car performance as speed changes. The air intake system consists of an inlet nozzle, throttle, restrictor, air box and cylinder suction pipes (runners). The paper deals with the use of CFD numerical simulations during the design and optimization of components. In this research article, two main steps are illustrated to develop carefully the design of the air box and match it with the suction pipe lengths to optimize torque over the entire range of operating speeds. Also the current intake system was assessed acoustically and simulated by means of 1-D gas dynamics using the software AVL-Boost. In this manner, before a new prototype intake manifold is built, the designer can save a substantial amount of time and resources. The results illustrate the improvement of simulation quality using the new models compared to the previous AVL-Boost model
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