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Title: New capabilities in CREATE™-AV Helios Version 11
Authors: Jude, Dylan P.
Bauer, Andrew C.
Forsythe, James R.
Wissink, Andrew M.
Jayaraman, Buvana
Roget, Beatrice
Lakshminarayan, Vinod
Sitaraman, Jayanarayanan
Trigg, Robert
Peters, Nicholas
Keywords: High performance computing
Computer simulation
Rotors (Helicopters)
Web-based user interfaces
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Miscellaneous Paper (Engineer Research and Development Center (U.S.)) ; no. ERDC/ITL MP-21-9
Is Version Of: Wissink, Andrew M., Dylan Jude, Buvaneswari Jayaraman, Beatrice Roget, Vinod K. Lakshminarayan, Jayanarayanan Sitaraman, Andrew C. Bauer, James R. Forsythe, and Robert D. Trigg. "New Capabilities in CREATE-AV Helios Version 11." In AIAA Scitech 2021 Forum, p. 0235. 2021.
Abstract: CREATE™-AV Helios is a high-fidelity coupled CFD/CSD infrastructure developed by the U.S. Dept. of Defense for aeromechanics predictions of rotorcraft. This paper discusses new capabilities added to Helios version 11.0. A new fast-running reduced order aerodynamics option called ROAM has been added to enable faster-turnaround analysis. ROAM is Cartesian-based, employing an actuator line model for the rotor and an immersed boundary model for the fuselage. No near-body grid generation is required and simulations are significantly faster through a combination of larger timesteps and reduced cost per step. ROAM calculations of the JVX tiltrotor configuration give a comparably accurate download prediction to traditional body-fitted calculations with Helios, at 50X less computational cost. The unsteady wake in ROAM is not as well resolved, but wake interactions may be a less critical issue for many design considerations. The second capability discussed is the addition of six-degree-of-freedom capability to model store separation. Helios calculations of a generic wing/store/pylon case with the new 6-DOF capability are found to match identically to calculations with CREATE™-AV Kestrel, a code which has been extensively validated for store separation calculations over the past decade.
Description: Miscellaneous Paper
Gov't Doc #: ERDC/ITL MP-21-9
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Miscellaneous Paper

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