Improvement of aerodynamic characteristics of a thick airfoil with a vortex cell in sub- and transonic flow

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• 作者：Sergey Isaev^a ; ^{isaev3612@yandex.ru} ; Paul Baranov^a ; ^{paul-baranov@yandex.ru} ; Igor Popov^b ; ^{popov-igor-alex@yandex.ru} ; Alexander Sudakov^a ; ^{sudakov-1950@mail.ru} ; Alexander Usachov^c ; ^{usachov_al@mail.ru}
• 关键词：Flow control ; MQ airfoil ; Vortex cell ; Slot suction ; Turbulence ; Compressibility ; Computation
• 刊名：Acta Astronautica
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：132
• 期：Complete
• 页码：204-220
• 全文大小：4898 K
• 卷排序：132

文摘

The modified SST model using Rodi–Leschziner–Isaev’s approach is verified. Simulation results considering airfoil pressure coefficient are closer to test data. Characteristics of 20% MQ airfoil with vortex cell are improved at M=0.3–0.55. A detailed analysis of buffeting for MQ profile with vortex cell is done at M=0.6. It is found that the vortex cell at М=0.7 is inactive.