Time-accurate inlet and outlet conditions for unsteady transonic channel flow Export

@article{Ballmann2002, abstract = {Nonlocal inlet and outlet transparent boundary conditions (TBCs) based on a linear model of the Euler equations outside the computational domain are studied. The conditions are tested for both stationary and nonstationary flow problems about an airfoil in the numerical wind tunnel. Comparison is made with characteristic-based boundary conditions (CBCFs). Test calculations show that TBCs require much smaller computational domains for solving the problem. Unsteady calculations for the oscillating airfoil show that the solutions obtained with TBCs and CBCFs can strongly differ from each other in the case of certain resonance frequencies. In contrast to CBCFs, TBCs permit us to observe much better coincidence of solutions while increasing the size of the computational domains used. It is also observed that calculations for resonance cases require greater computational domains (up- and downstream) and much more oscillating cycles to obtain a periodical solution.}, address = {Rheinisch-Westfalische TH Aachen, 52062 Aachen, Germany}, author = {Ballmann, J. and Britten, G. and Sofronov, I.}, citeulike-article-id = {2728319}, citeulike-linkout-0 = {http://www.scopus.com/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-0036715226}, citeulike-linkout-1 = {http://www.scopus.com/scopus/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-0036715226}, comment = {Unsteady non-local bounadry conditions for the flower code, tested on wind tunnel RESONANCE points. Might be a free stream resonance. (?)}, journal = {AIAA Journal}, keywords = {bac311, resonance, rwth, simulation, transonic}, number = {9}, pages = {1745--1754}, posted-at = {2008-04-28 08:47:11}, priority = {0}, title = {Time-accurate inlet and outlet conditions for unsteady transonic channel flow}, url = {http://www.scopus.com/scopus/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-0036715226}, volume = {40}, year = {2002} }

TY - JOUR ID - Ballmann2002 L3 - citeulike-article-id:2728319 N2 - Nonlocal inlet and outlet transparent boundary conditions (TBCs) based on a linear model of the Euler equations outside the computational domain are studied. The conditions are tested for both stationary and nonstationary flow problems about an airfoil in the numerical wind tunnel. Comparison is made with characteristic-based boundary conditions (CBCFs). Test calculations show that TBCs require much smaller computational domains for solving the problem. Unsteady calculations for the oscillating airfoil show that the solutions obtained with TBCs and CBCFs can strongly differ from each other in the case of certain resonance frequencies. In contrast to CBCFs, TBCs permit us to observe much better coincidence of solutions while increasing the size of the computational domains used. It is also observed that calculations for resonance cases require greater computational domains (up- and downstream) and much more oscillating cycles to obtain a periodical solution. IS - 9 JF - AIAA Journal AD - Rheinisch-Westfalische TH Aachen, 52062 Aachen, Germany EP - 1754 TI - Time-accurate inlet and outlet conditions for unsteady transonic channel flow VL - 40 SP - 1745 KW - bac311 KW - resonance KW - rwth KW - simulation KW - transonic N1 - Unsteady non-local bounadry conditions for the flower code, tested on wind tunnel RESONANCE points. Might be a free stream resonance. (?) AU - Ballmann, J AU - Britten, G AU - Sofronov, I PY - 2002/// UR - http://www.scopus.com/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-0036715226 ER -