А.N. Albutov - Head of Sector, JSC «Almaz-Antey». E-mail: forozzo@front.ru A.Yu. Vasin - Engineer 3 cat., JSC «Almaz-Antey». E-mail: lonelywolf91@mail.ru S.V. Zabolotnaya - Engineer 1 cat., JSC «Almaz-Antey». E-mail: vik_inga@mail.ru

Active Phased Array Radar (APAR) consist of numerous transmit/receive modules (TRM) which are combined in removable blocks. The main sources of heat generation in TRM are output amplifiers and secondary power supplies. One of the most important problem designing APAR is to provide normal and stable thermal conditions of APAR elements. To solve this problem engineers commonly use liquid cooling system. Characteristics of cooling system are calculates by mathematical modeling during designing process. This article present results of thermal mathematical modeling of TRM in block to determine temperature of elements, dependence of cooling channel routing on flow resistance, flow rate and temperature on system-s input. Mathematical modeling and calculation were made using ANSYS/CFX application. Numerical modeling was performed using Reynolds - averaged Navier Stokes equations with k?ε turbulence model. Solution was found in stationary form. After executing modeling of two cooling channel routings with given flow rate range and temperature on block-s input we obtain TRM-s temperature and flow resistance of block.

 

1. Bratchikov A.N., Vasin V.I., Vasilenko O.O.i dr. Aktivnye fazirovannye antennye reshjotki / Pod red. D.I. Voskresenskogo i A.I. Kanashhenkova. M.: Radiotekhnika. 2004.
2. Savenko V.A. Integrirovannye radiatory dlja obespechenija teplovogo rezhima mikroskhem/ Sb. tezisov dokl. IIIVseross. kongressa molodykh uchjonykh. 2014. Vyp. 4. SPb: Universitet ITMO. 2014.
3. Teoreticheskie osnovy vychislitelnojj gidrodinamiki. Lekcii i prezentacii po ANSYS/CFX. 2011. EHl. resurs: http://www.cadfem-cis.ru.