Abstract
In order to simulate the spatial transition point from laminar flow to turbulence in a closed pipe, we proposed the numerical method called “stochastic determinism” that based on the stochastic Navier-Stokes equation. The important point is that the stochasticity level is decided by inlet disturbance intensity. The finite difference method based on the multi-level formulation is also included which can calculate spatial derivatives of physical quantities and integrated quantities accurately. In this report, we compute the transition phenomenon for incompressible flow with injection on the pipe wall. The computations fairly agree with Hof’s experimental results.
| Original language | English |
|---|---|
| Title of host publication | AIAA Aerospace Sciences Meeting |
| Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
| Edition | 210059 |
| ISBN (Print) | 9781624105241 |
| DOIs | |
| Publication status | Published - 2018 Jan 1 |
| Event | AIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States Duration: 2018 Jan 8 → 2018 Jan 12 |
Other
| Other | AIAA Aerospace Sciences Meeting, 2018 |
|---|---|
| Country | United States |
| City | Kissimmee |
| Period | 18/1/8 → 18/1/12 |
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ASJC Scopus subject areas
- Aerospace Engineering
Cite this
Spatial transition point from laminar flow to turbulence in a pipe with injection revealed by solving a weakly-stochastic navier-stokes equation. / Naruse, Koki; Naitoh, Ken.
AIAA Aerospace Sciences Meeting. 210059. ed. American Institute of Aeronautics and Astronautics Inc, AIAA, 2018.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Spatial transition point from laminar flow to turbulence in a pipe with injection revealed by solving a weakly-stochastic navier-stokes equation
AU - Naruse, Koki
AU - Naitoh, Ken
PY - 2018/1/1
Y1 - 2018/1/1
N2 - In order to simulate the spatial transition point from laminar flow to turbulence in a closed pipe, we proposed the numerical method called “stochastic determinism” that based on the stochastic Navier-Stokes equation. The important point is that the stochasticity level is decided by inlet disturbance intensity. The finite difference method based on the multi-level formulation is also included which can calculate spatial derivatives of physical quantities and integrated quantities accurately. In this report, we compute the transition phenomenon for incompressible flow with injection on the pipe wall. The computations fairly agree with Hof’s experimental results.
AB - In order to simulate the spatial transition point from laminar flow to turbulence in a closed pipe, we proposed the numerical method called “stochastic determinism” that based on the stochastic Navier-Stokes equation. The important point is that the stochasticity level is decided by inlet disturbance intensity. The finite difference method based on the multi-level formulation is also included which can calculate spatial derivatives of physical quantities and integrated quantities accurately. In this report, we compute the transition phenomenon for incompressible flow with injection on the pipe wall. The computations fairly agree with Hof’s experimental results.
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UR - http://www.scopus.com/inward/citedby.url?scp=85044393837&partnerID=8YFLogxK
U2 - 10.2514/6.2018-0589
DO - 10.2514/6.2018-0589
M3 - Conference contribution
AN - SCOPUS:85044393837
SN - 9781624105241
BT - AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
ER -