期刊
INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
卷 27, 期 6-7, 页码 307-315出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10618562.2013.819972
关键词
LES; inlet turbulence; inlet boundary patch; grid-generated turbulence; CFD
资金
- Engineering and Physical Sciences Research Council [EP/I027912/1, EP/K013319/1] Funding Source: researchfish
- EPSRC [EP/K013319/1, EP/I027912/1] Funding Source: UKRI
A new technique of generating turbulence in large-eddy simulations (LES) has been investigated and results compared with previous studies for validation. The proposed gridInlet technique uses a grid pattern on the inlet boundary patch to produce grid-generated turbulence as used in wind tunnel experiments. This allows the turbulence integral length scale to be controlled by changing the grid size, while the turbulence intensity is controlled by changing the inlet distance. The objective of this paper is to investigate domain and mesh requirements to implement the gridInlet technique. This technique is most suited to studies on the influence of high-intensity isotropic turbulence on objects, particularly if comparisons are to be made to experimental data obtained with grid-generated turbulence.
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