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Project Title:  Reduced-Order Modeling of Interfacial Dynamics to Enable Large-Scale, Mission-Length Simulations of Low-Gravity Propellant Management Using CVB PSI Data Reduce
Images: icon  Fiscal Year: FY 2024 
Division: Physical Sciences 
Research Discipline/Element:
Physical Sciences:  
Start Date: 10/01/2023  
End Date: 09/30/2025  
Task Last Updated: 11/09/2023 
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Principal Investigator/Affiliation:   Allen, Jeffrey S.  / Michigan Technological University 
Address:  815 R.L. Smith Building 
1400 Townsend Drive 
Houghton , MI 49931 
Phone: 906-487-2349  
Congressional District:
Organization Type: UNIVERSITY 
Organization Name: Michigan Technological University 
Joint Agency:  
Bellur, Kishan  Ph.D. University of Cincinnati 
Project Information: Grant/Contract No. 80NSSC24K0193 
Responsible Center: NASA GRC 
Grant Monitor: Chao, David  
Center Contact: 216-433-8320 
Unique ID: 15729 
Solicitation / Funding Source: 2022 Physical Sciences NNH22ZDA001N-PSI E.8 Physical Sciences Informatics 
Grant/Contract No.: 80NSSC24K0193 
Project Type: Ground 
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Task Description: Current state-of-the-art allows for simulation of liquid-vapor phase change and thermal management of large (1 to 10 meter diameter), low-gravity orbiting propellant depots (LH2 and LOx) for a few seconds with weeks-to-months of computational time. Part of the computational cost arises from having to resolve microscale features (10e-6 meters) on a dynamic liquid-vapor interface (ullage waves and liquid slosh) in order to capture local phase change and heat transfer. The result is an extremely fine mesh on a very large computational domain. The objective of the proposed work is to develop a reduced-order interface model capable of capturing all the relevant physics of interfacial dynamics for two-phase flow in low gravity. We intend to expand a non-linear evolution of the interface using a Eulerian vortex sheet model implemented on an unfitted finite element mesh. The interfacial model will be formulated to integrate mass, momentum, and energy exchange at the interface into an evolution equation for a vortex sheet. The unique configuration, test conditions, and data (imaging and thermal) of the Constrained Vapor Bubble (CVB) experiment conducted on the International Space Station (ISS) can isolate several important instability physical mechanisms, such as Marangoni stresses. CVB data, without the overpowering effect of gravity, will enable incorporation and validation of the nuances of unstable interfacial dynamics to the reduced-order interface model.

Research Impact/Earth Benefits:

Task Progress & Bibliography Information FY2024 
Task Progress: New project for FY2024

Bibliography: Description: (Last Updated: 08/06/2023) 

Show Cumulative Bibliography
 None in FY 2024