Thanks for the quick response. We will have pitch motions up to 15 degrees. So, I think the sliding mesh method is more efficient. Can we test the development from Mohsen somehow? The Mach-Numbers are noch very low. We expect something between 0.2-0.3. Best regards Lars Am 31.03.2025 um 15:58 schrieb ankanggao@ustc.edu.cn:
Hi Lars,
I am working on dynamic stall problems using Nektar++. There is a moving reference frame method in Nektar++. We can use it to solve the plunging and pitching problems without moving grid.
But if the rotation angle is too large, the airfoil wake sweeps a wide area and it may require a very large refined domain to capture the wake.
Mohsen developed a slid mesh method, I am not sure if it can be used in incompressible solver. If so, the wake issue can be solved.
Best
Ankang
------------------------------------------------------------------------ Research Associate Department of modern mechanics University of Science and Technology of China
-----Original Messages----- *From:* "Lars Wein" <wein@tfd.uni-hannover.de> *Send time:* Monday, 03/31/2025 19:07:17 *To:* nektar-users@imperial.ac.uk *Subject:* [Nektar-users] nektar for dynamic stall simulations
Dear Nektar-Team,
last week during the ETC conference in Hannover, I listend to Mr. Spencer. I think he mentioned you are currently working on a methodology to simulate moving bodies. In my team, we are simulating dynamic stall on wind energy turbines, using openFOAM and a sliding mesh interface. The blade performs an oscillating pitching motion, defined by the user (not two-way FSI). Since we strive for hybrid RANS LES, or even wall resolved LES, I would prefer to switch from openFOAM to a solver that supports higher order numerical methods. Do you think Nektar would be feasible for this kind of simulations?
Best regards
Lars Wein
--
Dr.-Ing. Lars WEIN <https://www.tfd.uni-hannover.de/de/institut/unser-team>Team Leader Multiphysics of Turbulent Flows & Deputy COO
Logo LUH / TFD
Gottfried Wilhelm Leibniz Universität Hannover Institute of Turbomachinery and Fluid Dynamics | TFD An der Universität 1 Geb. 8140, Raum 209 30823 Garbsen, Germany
Telefon: +49 (0)511 762 2347 Fax: +49 (0)511 762 3997 E-Mail: wein@tfd.uni-hannover.de Web: www.tfd.uni-hannover.de <http://www.tfd.uni-hannover.de>
-- Dr.-Ing. Lars WEIN <https://www.tfd.uni-hannover.de/de/institut/unser-team>Team Leader Multiphysics of Turbulent Flows & Deputy COO Logo LUH / TFD Gottfried Wilhelm Leibniz Universität Hannover Institute of Turbomachinery and Fluid Dynamics | TFD An der Universität 1 Geb. 8140, Raum 209 30823 Garbsen, Germany Telefon: +49 (0)511 762 2347 Fax: +49 (0)511 762 3997 E-Mail: wein@tfd.uni-hannover.de Web: www.tfd.uni-hannover.de <http://www.tfd.uni-hannover.de>
