Abstract
This study investigates a flow past a choke valve by
experimental and numerical means. The flow profile after
a choke valve with high Reynolds number of approximately
1,000,000 was measured using a LDV and computed using
RANS simulations. Two turbulence models were used for the
simulation, namely k- [...] and k- [...] turbulence
models. It was found out that the k- [...] model produces
more similar results to LDV measurements than the k-
[...] model. This study also reports citable flow
profiles past a choke valve computed by both turbulence
models. Furthermore, the accuracy of the LDV based volume
flow measurements was also discussed. The volume flow
estimates were compared with simulation results, and with
flow meter results. Results showed that LDV can be used
for volume flow estimation even in unsymmetrical
situations, such as after the choke valve, with error
ranging from 0.3% to 2.6%.
| Original language | English |
|---|---|
| Pages (from-to) | 151-161 |
| Journal | Flow Measurement and Instrumentation |
| Volume | 45 |
| DOIs | |
| Publication status | Published - 2015 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- choke valve
- Laser Doppler velocimetry
- butterfly valve
- flow rate estimation
- numerical simulation
- turbulence modelling