scholarly journals Models of Quasi-Steady and Unsteady Discharge from Plumbing Fixtures

1981 ◽  
Vol 86 (2) ◽  
pp. 171
Author(s):  
B.M. Mahajan ◽  
L.S. Galowin ◽  
P.A. Kopetka
Keyword(s):  
Unsteady Discharge

Performance Study of Storage-Type Domestic Electrical Water-Heaters with Wedged Inlet: Unsteady Water Discharge Rate

2010 ◽  
Vol 44-47 ◽  
pp. 299-303
Author(s):  
Zhi Jun Zhang ◽  
Shi Wei Zhang ◽  
Cheng Hai Xu
Keyword(s):  
Temperature Profile ◽  
Discharge Rate ◽  
Water Discharge ◽  
Dynamics Simulation ◽  
Performance Study ◽  
Water Heaters ◽  
Computer Fluid Dynamics ◽  
Unsteady Discharge ◽  
Discharge Efficiency ◽  
Storage Type

The unsteady water discharge rate on performance of storage-type domestic electrical water-heaters with wedged inlet was studied by computer fluid dynamics simulation (CFD). The results were compared with those of conventional design EWHs having the same tank size. The heater performance is characterized the discharge efficiency, extraction efficiency and fraction of heat recoverable. The water draw-off temperature profile of steady and unsteady water discharge rate has nothing difference for wedged inlet structure, both curve was overlapped. The almost the same energy utility efficiency was gotten both steady and unsteady discharge rate for wedged inlet structure. The obviously difference of water draw-off temperature profile was shown for conventional inlet structure. Water draw-off temperature profile of unsteady discharge rate was decreased faster than steady discharge rate. The energy utility efficiency of unsteady discharge rate was also lower than steady discharge rate. The results were shown that the wedged inlet structure heater has excellent performance for energy utility efficiency under unsteady discharge rate.

Unsteady discharge of a viscous gas from a duct.

AIAA Journal ◽  
1967 ◽  
Vol 5 (9) ◽  
pp. 1724-1726
Author(s):  
G. R. OTEY ◽  
D. U. VON ROSENBER
Keyword(s):  
Viscous Gas ◽  
Unsteady Discharge

scholarly journals Research on the Unsteady Discharge Flow of Dry Chemical Powder Tank

2017 ◽  
Vol 3 (8) ◽  
pp. 58-62
Author(s):  
HeeGeun Song ◽  
Junhyo Kim ◽  
Jungpil Noh ◽  
Sunchul Huh ◽  
Byeongkeun Choi ◽  
...  
Keyword(s):  
Discharge Flow ◽  
Unsteady Discharge

Dynamic Responses of Partially Cavitated Hydrofoil Cascade to Axial Gust in Bubbly Water

1984 ◽  
Vol 106 (3) ◽  
pp. 312-318
Author(s):  
Tetsuo Nishiyama ◽  
Hideya Nishiyama
Keyword(s):  
Water Conservation ◽  
Pressure Rise ◽  
Volume Ratio ◽  
Gain Factor ◽  
Dynamic Responses ◽  
Cavity Model ◽  
Cavity Pressure ◽  
Reduced Frequency ◽  
The Mean ◽  
Unsteady Discharge

A method for analysis by singularity representations is presented for dynamic responses of partially cavitated hydrofoil cascade to axial gust in bubbly water. Conservation laws of mass and momentum are applied to take account of the unsteady parts of cavity area, cavity termination thickness, and cavity pressure for unsteady partial cavity model. Also, the cavitation compliance and mass flow gain factor obtained from the cavity model determined are considered in relations to cavity length, reduced frequency, and air volume ratio. Comparisons of the mean unsteady pressure rise and unsteady discharge difference are also made with the available former results.

Unsteady discharge and fluid flow in a closed-cycle disk MHD generator

1988 ◽  
Vol 4 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Y. Okuno ◽  
H. Yamasaki ◽  
S. Kabashima ◽  
S. Shioda
Keyword(s):  
Fluid Flow ◽  
Closed Cycle ◽  
Mhd Generator ◽  
Unsteady Discharge

scholarly journals STUDY ON THE UNSTEADY DISCHARGE CHARACTERISTICS OF THE SPILLWAY CREST GATES

2008 ◽  
Vol 52 ◽  
pp. 793-798
Author(s):  
Takahiro SATO ◽  
Seiji KATOU ◽  
Nobukazu TANAKA ◽  
Nozomu YONEYAMA
Keyword(s):  
Discharge Characteristics ◽  
Unsteady Discharge

scholarly journals Research on the Unsteady Discharge Flow of Dry Chemical Powder Tank

2017 ◽  
Vol 239 ◽  
pp. 012016
Author(s):  
HeeGeun Song ◽  
Sedong Kim ◽  
Kitae Yu ◽  
Cheol Park ◽  
YoungGil Jung ◽  
...  
Keyword(s):  
Discharge Flow ◽  
Unsteady Discharge
Sign in / Sign up

Export Citation Format

Share Document