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Anomalous Behavior of Newtonian Hydrodynamics Coupled with Radiation Transport

Technical Report ·
DOI:https://doi.org/10.2172/1994102· OSTI ID:1994102
 [1];  [1];  [2]
  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  2. Texas A&M University, College Station, TX (United States)

This study shows that Newtonian hydrodynamics coupled with radiation transport, using a wide range of methods for treating the material-motion corrections, results in anomalous behavior. In particular, the flow of infinite-medium equilibration will accelerate whenever viewed moving past an observer in the laboratory frame. The acceleration may cause the velocity to increase exponentially in time. An exact fully-relativistic solution is derived to show that there is no acceleration, independent of the reference frame. This solution is analytic and may be used as a validation problem for the simulation of fully-relativistic radiation hydrodynamics.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
DOE Contract Number:
89233218CNA000001
OSTI ID:
1994102
Report Number(s):
LA-UR-23-20886; TRN: US2404548
Country of Publication:
United States
Language:
English