experimental comparison of four borehole heat exchangers
... the initial level. Accounting for this, it is possible to estimate the borehole wall temperatures. The borehole wall temperature was assumed to be constant and equal to 7,2 °C for the calculations in this report. This is of course possible only by neglecting the negative and positive gradient that t ...
... the initial level. Accounting for this, it is possible to estimate the borehole wall temperatures. The borehole wall temperature was assumed to be constant and equal to 7,2 °C for the calculations in this report. This is of course possible only by neglecting the negative and positive gradient that t ...
Problems with Pitots - Source Testing Association
... Pitot tubes have the potential to provide measurements of the flow of industrial stack emissions at a suitable level of uncertainty, in a cost effective manner. However, despite their widespread use in the industrial emissions monitoring industry, knowledge of their potential failings and the assump ...
... Pitot tubes have the potential to provide measurements of the flow of industrial stack emissions at a suitable level of uncertainty, in a cost effective manner. However, despite their widespread use in the industrial emissions monitoring industry, knowledge of their potential failings and the assump ...
Overdetermined Steady-State Initialization Problems in
... a “steady-state initialization” option on the system components, without worrying too much about the actual internal implementation. This means that each component model should contain an initial equation section, with conditionally activated initial equations that express the steady state condition ...
... a “steady-state initialization” option on the system components, without worrying too much about the actual internal implementation. This means that each component model should contain an initial equation section, with conditionally activated initial equations that express the steady state condition ...
1 BEHAVIOR OF FISH REEF BLOCKS FALLING THROUGH WATER
... crane and install the blocks in such deep water. On the other hand, though a method by free fall (Fig. 1(b)) is more economical, the accuracy of installation of the blocks becomes a problem. The accuracy requested for the placement position is a range within 30m in radius around the planned position ...
... crane and install the blocks in such deep water. On the other hand, though a method by free fall (Fig. 1(b)) is more economical, the accuracy of installation of the blocks becomes a problem. The accuracy requested for the placement position is a range within 30m in radius around the planned position ...
Scaling laws for pulsed electrohydrodynamic drop formation
... conical shape gradually relaxes back to a state without electric stress 共at 22.8 ms兲. The cone and drop formation rates extracted from Fig. 1共b兲 are approximately equal; this equivalence holds under a variety of conditions 共Sec. A2 of Ref. 13兲. The empirical equivalence suggests that the flow is dra ...
... conical shape gradually relaxes back to a state without electric stress 共at 22.8 ms兲. The cone and drop formation rates extracted from Fig. 1共b兲 are approximately equal; this equivalence holds under a variety of conditions 共Sec. A2 of Ref. 13兲. The empirical equivalence suggests that the flow is dra ...
chapter 1 introduction and basic concepts
... A fluid flow during which the density of the fluid remains nearly constant is called incompressible flow. A flow in which density varies significantly is called compressible flow. A fluid whose density is practically independent of pressure (such as a liquid) is commonly referred to as an “incompres ...
... A fluid flow during which the density of the fluid remains nearly constant is called incompressible flow. A flow in which density varies significantly is called compressible flow. A fluid whose density is practically independent of pressure (such as a liquid) is commonly referred to as an “incompres ...
Numerical Study of Laminar Fluid Flow and Heat Transfer in the
... of the hydrodynamic boundary layer for different Reynolds numbers at the entrance region of the circular tube. Assuming uniform velocity (U=Uo=1) over its inlet section. The dimensionless velocity at the walls equals zero, because of adhesion, and increases as moving towards the center at which the ...
... of the hydrodynamic boundary layer for different Reynolds numbers at the entrance region of the circular tube. Assuming uniform velocity (U=Uo=1) over its inlet section. The dimensionless velocity at the walls equals zero, because of adhesion, and increases as moving towards the center at which the ...
Fundamentals of the Heat Transfer Theory
... velocity, temperature, pressure pulsations. Separate small volumes of liquid (moles) start moving across the flow and even in the opposite direction relative to the averaged motion. The transition from the laminar flow to the turbulent one occurs not at a point but over some section (Figure 2). Flow ...
... velocity, temperature, pressure pulsations. Separate small volumes of liquid (moles) start moving across the flow and even in the opposite direction relative to the averaged motion. The transition from the laminar flow to the turbulent one occurs not at a point but over some section (Figure 2). Flow ...
J107
... With the developments in the micro-electro-mechanical systems(MEMS) fabrication technology, microchannels can be manufactured directly on the backside of a silicon wafer. For this type of microchannels, the ratio of wall thickness to channel diameter is usually much larger than that for macroscale t ...
... With the developments in the micro-electro-mechanical systems(MEMS) fabrication technology, microchannels can be manufactured directly on the backside of a silicon wafer. For this type of microchannels, the ratio of wall thickness to channel diameter is usually much larger than that for macroscale t ...
Processing of temperature field in chemical microreactors with
... Microfluidic chemical reactors are one of the very promising tools given by MEMS (micro-electro-mechanical systems). One application of MEMS consists in investigating the chemical reactions in fluid flow situations in micro channel. The small size is suitable to master the mixing of the reactants wi ...
... Microfluidic chemical reactors are one of the very promising tools given by MEMS (micro-electro-mechanical systems). One application of MEMS consists in investigating the chemical reactions in fluid flow situations in micro channel. The small size is suitable to master the mixing of the reactants wi ...
governing equations of fluid mechanics and heat transfer
... is often used to determine the coefficient of thermal conductivity k once p is known. This is possible because the ratio (c,/Pr), which appears in the expression ...
... is often used to determine the coefficient of thermal conductivity k once p is known. This is possible because the ratio (c,/Pr), which appears in the expression ...
Ch2Aug2007
... This is simply a first order p.d.e. for p and can be solved readily. For the general case (V and p unknown), one must solve the N-S and continuity equations, which is a formidable task since the N-S equations are a system of ...
... This is simply a first order p.d.e. for p and can be solved readily. For the general case (V and p unknown), one must solve the N-S and continuity equations, which is a formidable task since the N-S equations are a system of ...
Residence Time Distribution
... Determining the RTD Experimentally Residence time distributions are measured by introducing a non-reactive tracer into the system at the inlet. The concentration of the tracer is changed according to a known function and the response is found by measuring the concentration of the tracer at the outle ...
... Determining the RTD Experimentally Residence time distributions are measured by introducing a non-reactive tracer into the system at the inlet. The concentration of the tracer is changed according to a known function and the response is found by measuring the concentration of the tracer at the outle ...