Announcing the

7th AIAA CFD Drag Prediction Workshop

Sponsored by the Applied Aerodynamics TC in collaboration with the Royal Aeronautical Society

AIAA logo Royal Aeronautical Society logo


2-Day Workshop before the AIAA AVIATION 2022 Conference

Chicago, IL USA
25-26 June 2022



Image of DPW Coin logo - obverse Image of DPW Coin logo - reverse

NASA Common Research Model (CRM)

The Challenge

Predict the effect of shock-induced separation on the variation of lift and pitching moment with increasing angle- of-attack at transonic conditions.

Flow conditions dominated by shock-induced separation represent a significant portion of the flight regime critical to aircraft safety and government certification regulations. All too often, anomalies in this flight regime are not discovered until flight test, resulting in expensive and time-consuming campaigns to "fix" associated issues. CFD can be far more efficient than wind tunnels in simulating the forces and moments of an elastic airplane at flight Reynolds number, but to be of practical use, CFD must be shown to adequately model the development and progression of shock-induced separation with increasing angle-of-attack in this portion of the flight envelope.
CL vs CM from DPW-6
Results from DPW-6. Only five solutions match test data beyond Pitch Break.
CAN YOU?

Objectives

General Information

Notification of Updates

Send email to request notification of updates to the website, geometry and release of grids: dpwaiaa@gmail.com

Dates

Release Geometry
 13 April
2021
Release Standard Grids
 1 September
2021
Notice of Intent to Participate Due
 18 February
 2022
Abstract Deadline
 1 April
 2022
Data Submittal Deadline
 23 May
 2022
Workshop
 25-26 June
 2022

Workshop registration will be handled through normal AIAA procedures.

Workshop presentations will not be official AIAA papers; however, several participants will be invited to support a special session on shock-induced separation prediction to be held during the AIAA SciTech Meeting, January 2023.

Organizing Committee

John Vassberg
The Boeing Company
Ben Rider
Olaf Brodersen
DLR
Stefan Keye
Mitsuhiro Murayama
 JAXA
Joseph Morrison
 NASA Langley Research Center
Melissa Rivers
Richard Wahls
David Hue
 ONERA
Edward Tinoco
 Retired
Edward Feltrop
 Textron Aviation
Kelly Laflin
Raj Nangia
 On behalf of the Royal Aeronautical Society
Chris Toomer
 University of the West of England, Bristol
Dimitri Mavriplis
 University of Wyoming

Test Cases

DPW-7 will focus on the NASA CRM Wing- Body configuration with prescribed static aeroelastic wing twist. Results will be compared to high-quality wind-tunnel data from multiple facilities.

Required

Case 1: Grid Convergence Study
Case 2: Alpha Sweeps at Constant Re
Case 3: Re Sweep at Constant CL

Optional

Case 4: Solution-Adapted Grid
Case 5: Beyond RANS: URANS, DDES, WMLES, Lattice-Boltzmann, etc.
Case 6: Coupled Aero-Structural Simulation

Geometries

Geometry files released on 13 April 2021. Please check the notes on the Geometry link for updated information.

Grids

Unstructured, Overset, and Multi-Block grids were released on 8 October 2021. Additional grids will be made available soon.

Any additional grids used to create submitted results must be provided to the DPW Committee.

Data Submittal Forms

Agenda and Presentations

Flyer

Change Log

18 Aug 2021
Updated Grid release date and Notice of Intent date; updated CRM photo; updated Flyer
20 Aug 2021
Updated Model Reference Data on Geometries page from jp2 to png to display on more browsers
8 Oct 2021
Updated Test Case definitions; Released Unstructured, Overset, and Multi-Block Grids
2 Nov 2021
Added Gridding Guidelines
22 Dec 2021
Updated Notice of Intent due date to 18 Feb 2022
22 Apr 2022
Updated Data Submittal Deadline to 23 May 2022
27 May 2022
Updated Case Definitions for Case 6. Added links to data files and Tecplot scripts.
1 June 2022
Updated DPW-VII.SectionalCutter_v7a.mcr Tecplot scripts.
6 October 2022
Updated DPW-VII.SectionalCutter_v7c.mcr Tecplot scripts (Requires Tecplot 2019 Release 1 or newer).

DPW Awards and Recognition

Contact

Email: dpwaiaa@gmail.com

FAQ



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For any questions, please contact the organizers at dpwaiaa@gmail.com



Last Updated
6 October 2022