【Daily Question】Principles of Chemical Engineering 074: Fluid Resistance (June 8)
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The Chemical Engineering Theory section is launching the \"One Question per Day\" campaign starting today, aimed at helping everyone reinforce their basic knowledge in chemical engineering. Subsequent series will include those on \"Principles of Chemical Engineering\", \"Mass Transfer and Separation\", \"Thermodynamics in Chemical Engineering\", and \"Chemical Process Engineering\" – we hope you will give it your active support! Answers to the questions in the \"One Question per Day\" campaign can be viewed directly by replying, and the thread will be closed after 1 day ! Participation earns 2 wealth points, with an additional 3 wealth points for correct answers~~~ Fill-in-the-blank question: The reasons for fluid resistance include ___________________. ______________ Internal friction and the flow state of the fluid
The reasons for fluid resistance include (internal friction) and (the flow state of the fluid).
The reasons for fluid resistance include: first, the viscous resistance caused by fluid viscosity； The second is the pressure difference drag caused by the difference in fluid flow velocity around the object. Fluid resistance is related to fluid viscosity, Reynolds number, and the shape and size of the object.
The first is the viscous resistance caused by fluid viscosity. The second is the pressure difference drag caused by the difference in fluid flow velocity around the object. Fluid resistance is related to fluid viscosity, Reynolds number, and the shape and size of the object.
One is the frictional resistance resulting from the viscosity of the liquid； The other is the pressure difference drag caused by the difference in fluid flow velocity around the object
The viscosity of the fluid itself, the shape of the pipe, and the avoidance of roughness
The reasons for fluid resistance include: first, the viscous resistance caused by the viscosity of the fluid; second, the pressure difference resistance resulting from differences in flow velocity of the fluid around an object. Actual fluids are viscous, and during flow, momentum exchange occurs between fluids with different velocities due to viscosity, causing the faster-flowing fluid to slow down and the slower-flowing fluid to speed up. When fluid flows past a solid object, the fluid in contact with the object comes to a stop with zero velocity, which in turn reduces the velocity of the surrounding fluid, thereby creating resistance.
The causes of fluid resistance include internal friction and flow conditions