Drag Prediction Workshop 8

DPW-8 and AePW-4

AVIATION 2026, San Diego

Data Submission Information

Data Submission File Templates
GitHub Overview and details
GitHub Submission Repository

A workshop-wide tagup will be held on Friday, November 8 at 10:00 Eastern Standard Time

NASA Common Research Model
Wing-body-nacelle-tail configuration, one of the configurations for DPW-8

The Challenge

Advance state of the art in both the DPW and AePW fields while collaborating and advancing multidisciplinary aerodynamics topics. A rich knowledge of seven Drag Prediction Workshops and three Aeroelastic Prediction Workshops will be leveraged.

Structure

This is a true collaborative effort between the two workshops and not simply co-location of the two workshops
Comprised of three to six Technical Working Groups, each of which investigates a given topic in greater technical detail
Some Technical Working Groups will be DPW-focused while others will overlap with the Aeroelastic Prediction Workshop
At the workshop, the DPW and AePW communities will meet separate for part of the time and together for a final joint session
A low barrier to entry will be provided for student participants

Objectives

To build on the success of Drag Prediction and Aeroelastic Prediction Workshops
To provide an impartial forum for evaluating the effectiveness of existing tools and methods
To identify areas needing additional research and development
To develop the infrastructure for future multidisciplinary workshops

General Information

This workshop is open to participants worldwide. Efforts will be made to ensure representation from all areas of industry, academia and government laboratories.
Efforts are being made such that submissions can range from the simpler test cases through highly-advanced methods.
Student participation encouraged through reduced computational requirements and decreased registration fee. (Graduate and undergraduate students)
Participation in the CFD studies is not required to attend the workshop. Everyone is welcome!
Open forums will be included in the workshop to discuss the solutions and modeling techniques.
Results will be made available after the workshop in a report and on the DPW website.
A registration fee will be required for attendance.
AIAA membership is not required.

Dates

Working Groups Start Meeting	Summer, 2024
SciTech Kickoff Meeting	January 10, 2024
Define Working Group Objectives	October 1, 2023
Determine Workshop Structure and Identify Working Groups	September 1, 2023

All-Hands Conference Meetings

SciTech 2024 Kickoff Meeting
AVIATION 2024 Meeting and notes

Working Group #1: Source of Scatter Working Group

Leads: Marshall Galbraith, Ed Tinoco, and Raj Nangia

This is similar to the traditional DPW approach for transonic flow on a static geometry. This group will concentrate on identifying the reasons for data scatter that was observed in DPW-VII.

Working Group #2: Static Aeroelastic Deformation Working Group (with AePW)

Leads: Ben Rider, Stefan Keye, and Garrett McHugh

Fluid-structure interactions will be calculated and studied in detail. This group will be comprised of individuals in both DPW and AePW communities with significant collaboration leading up to the final workshop.

Working Group #3: Buffet Working Group (with AePW)

Leads: Brent Pomeroy, Bret Stanford, Andrea Sansica, Daniella Raveh, and Hadar Ben-Gida

This group seeks to identify nature of pre- and post-buffet flight regimes with unsteady CFD analysis. Simulations will be performed on both experimentally-measured deformations and with coupled fluid/structure interactions. Members of the DPW and AePW communities will be involved.

Working Group #4: Wind Tunnel Test Environment Working Group

Leads: Melissa Rivers, Ed Tinoco, and Ben Rider

This group seeks to understand the impact of the wind-tunnel environment when compared to free-air CFD, in particular both forces and moments as well as surface pressures.

Students

Students, both graduate and undergraduate are encouraged to attend and submit data for the workshop. Individuals can participate in any of the four working groups. Efforts are being made to minimize barrier to entry such that students can attend the workshop and interface with technical experts. Student submissions do not need to achieve all of the components of a specific Test Case. Instead, students are welcomed and encouraged to submit whatever data they have generated, no matter how small the database. A significantly-reduced rate will be charged to students.

Geometry

Geometry for DPW-8 available for download.

Experimental Data

Experimental data for the NASA Common Research Model and ONERA OAT15A airfoil is publicly available.

Grids

Committee-supplied grids are being generated in multiple formats from two commercial partners (Helden Aerospace and Cadence. Standard gridding guidelines have also been developed.

Data Submission

Data should be submitted in the workshop-standard format to enable the Committee to do ensemble data analysis.

Email Updates

All emails sent to the DPW mailing list can be seen here.

Notification of Updates

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

Interdisciplinary Organizing Committee

Pawel Chwalowski, AePW	NASA Langley Research Center
Brent Pomeroy, DPW	NASA Langley Research Center
Ben Rider, DPW	The Boeing Company
Brent Stanford, AePW	NASA Langley Research Center

DPW Organizing Committee

Ben Rider, Co-Chair	The Boeing Company
Brent Pomeroy, Co-Chair	NASA Langley Research Center
Hadar Ben-Gida	Technion Israel Institute of Technology
Stefan Keye	DLR
Kelly Laflin	Textron Aviation
Mitsuhiro Murayama	JAXA
Andrea Sansica	JAXA
Raj Nangia	On behalf of the Royal Aeronautical Society
Ilias Petropoulos	ONERA
Melissa Rivers	NASA Langley Research Center
Seth Kelly	NASA Langley Research Center
Edward Tinoco	Retired
Chris Toomer	University of the West of England, Bristol
John Vassberg, Chair Emeritus	JetZero

Change Log

October 3, 2024	Uploaded version 1.5 of NTF geometry
September 19, 2024	Uploaded ONERA OAT15A grids
September 5, 2024	Uploaded new ONERA OAT15A airfoil geometry
July 29, 2024	Uploaded v2 of submission form templates
July 23, 2024	Uploaded .b8. HeldenMesh grids
July 16, 2024	Committee-supplied RANS ONERA OAT15A grids posted
June 28, 2024	Updated gridding guidelines (see change log in pdf)
June 25, 2024	Chord of ONERA OAT15A updated to 230mm
June 18, 2024	Gridding guidelines posted; first start at postprocessing page
June 5, 2024	Added pages for geometry and grids
February 28, 2024	Interest survey link added
February 15, 2024	Created page to archive all DPW announcement emails
February 8, 2024	Slide 22 on kickoff meeting presentation updated
January 8, 2024	Posted slides from kickoff meeting
December 15, 2023	Kickoff meeting location added
October 23, 2023	Working groups defined
September 15, 2023	Kickoff meeting listed
August 7, 2023	DPW-8 information added