Experience of application of SST-model-2003 with correction on streamline curvature according to Rodi-Leshziner-Isaev approach for (U)RANS calculations of separated and vortex sub- and supersonic flows

Standard and Modified SST Models with the Consideration of the Streamline Curvature for Separated Flow Calculation in a Narrow Channel with a Conical Dimple on the Heated Wall

“…The local and integral characteristics of the separated flow and heat transfer in the channel with a conical dimple of depth 0.233 and an inclination angle of 45 • are calculated with the use of four SST turbulence models. The Menter 1993 [29] and 2003 SST models [4], as well as the two Menter 2003 models with the consideration of the streamline curvature influence corrected within the framework of the RLI [54] and SM [57] approaches, are considered. All the calculations used the basic multiblock grid.…”

“…As described in references [53,54,63], when the Menter 2003 SST model is used to calculate the separated flows, the effect of artificial pumping of the vortex viscosity occurs in the cores of large-scale vortices. As seen from Figure 8f, the predictions by means of the Menter 2003 SST model are characterized by a bell-shaped distribution when the maximum vortex viscosity value in the swirling flow core is equal to 0.0028.…”

“…The scope of application of the Menter 2003 SST model was significantly expanded in the calculations of the trans-, super-, and hypersonic separated flows, as well as of the 3D jet-vortex structures. The approach to correcting the Menter 2003 SST model with consideration of the streamline curvature influence on the vortex viscosity coefficient was generalized by S.A. Isaev and was called the Rodi-Leschziner-Isaev approach (RLI) [54].…”

Моделирование Влияния Сдвига Ветра На Снижение Лобового Сопротивления Энергоэффективного Высотного Сооружения С Использованием Дросселирующего Эффекта

“…Как подтверждено многочисленными тестами (см., например, [18]), применение стандартной SST-модели 2003 года [14] приводит к ложной накачке вихревой вязкости в ядра крупномасштабных вихрей и к чрезмерному уровню вихревой вязкости в целом. Описанный обобщенный подход Роди-Лешцинера-Исаева (RLI) [19] позволяет избежать нефизической накачки вихревой вязкости. Поправка на кривизну линий тока в рамках подхода RLI введена в пакеты VP2/3 (Velocity-Pressure, 2D/3D) и sigma-flow [12,20].…”