my question is on what basis i have to compare these two either by equivalent diameter or hydraulic diameter? also what is the difference between these two diameters? please reply me... April 5, 2010, 09:01 #2
hi , i find in the web that the equivalent diameter is not the same as the hydraulic diameter, but i did not understand the difference very well, can you guys explain to me or help me to calculate the equivalent diameter or the hydraulique diameter of this shape ?i need it to calculate...
网络水力等效直径;水力当量直径 网络释义
Equivalent diameterNote! The hydraulic diameter is not the same as the equivalent diameter. The equivalent diameter is the diameter of a circular duct or pipe that gives the same pressure loss as a rectangular duct or pipe.Related Topics Fluid Flow and Pressure Loss in Pipes and Tubes Fluid...
Reportedly, this reduction in the diameter of the umbilical reduced the total Quest system weight by 20,000 lb (9066 kg). The ROV will not be pulling the umbilical around if it has a heavy TMS at the end. But the same factors apply to the tether between the TMS and the vehicle. For...
Considering an average tumor cell diameter of 20 µm [12], the 2 mm tip would cover about 100 tumor cells. Amount and type of drug or a biopsy sample that can be carried by a single microrobot is also severely limited, thus requiring a swarm of microrobots [13]. Even though a ...
Ten 1.5 mm diameter K-type (chromel-alumel) thermocouples with mineral insulation and stainless steel cladding, measure the wall temperature throughout the test section. Fig. 1 shows a diagram and a photograph of the Rewetting Test Facility (ITR). Fig. 2 shows the longitudinal thermocouple ...
IN ANY CASE, THE PIPE SHALL BE TESTED TO ASSURE A LEAKAGE NOT TO EXCEED FIFTY (50) GALLONS, PER MILE, PER INCH DIAMETER PER DAY, TESTED A MINIMUMHYDRAULIC HEADOF AT LEAST TWO (2) FEET. More Definitions ofHYDRAULIC HEAD HYDRAULIC HEADmeans the energy contained at a point in thegroundwat...
Computational fluid dynamics(CFD)numerical simulation tests for cone differential flowsensors with diameter of 100 mm were carried out by RNG k-ε turbulence model,and the va- lues of equivalent diameter ratioβ,are 0. 利用RNG k-ε模型对100 mm 口径锥体差压式流量传感器进行了 CFD 数值模拟实验,...
6) Flux equivalent diameter 流量当量直径 补充资料:当量直径 分子式: CAS号: 性质:也称为水力直径(hydran-lic diameter)。当流体在非圆形管内流动,如在套管的环隙中流过,则表征管的大小时既不能用内管的外径d1,也不能用外管的内径d2,需用当量直径de。对于湍流de的定义是:de=4×水力半径,水力半径为流体...