Recent content by stanley650586031

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    Huge pressure drop after changing pipe length (Don't think it's loss)

    Hi jrmicher, Thank you for you information. I appreciate it. I did calculate the major head losses for the system already which the frictional factor was derived from the Moody Diagram that you mentioned. However, the head loss does not contribute a large amount of pressure drop here based on my...
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    Huge pressure drop after changing pipe length (Don't think it's loss)

    Hi JBA, thank you for your inputs. I really appreciate it. Did you have a chance to figure out what the back pressure is? It will be super helpful if you have that information. Thanks Stanley
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    Huge pressure drop after changing pipe length (Don't think it's loss)

    Hi All, Recently, I have been struggling to seek a solution for a seemingly simple flow question and try to rationalize my thoughts with mechanical engineering knowledge I have acquired from school but none of them can make me feel comfortable about answering the phenomenon I encountered in...
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    Relationship Between Suction Force & Suction Distance

    [Mentor Note -- two duplicate threads merged into one] Summary: Suction force drops dramatically as the gap between the object and suction force is created and increases. How to find a method to quantify this relationship? Summary: Suction force drops dramatically as the gap between the...
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    Relationship Between Suction Force & Suction Distance

    Hi All, We all have experiences of using vacuum cleaner to clean carpet, floor, etc. and might probably have noticed a super intuitive phenomenon that as you move your vacuum cleaner suction hose closer to the floor, the suction force increases which helps you pull some of large trash off the...
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    Water jet strikes a plate and slows down due to frictional forces?

    Imagine a flat plate (2m long, 1 mm thick) in 2D... like a rectangle if you look at in front view. A water jet strikes at the beginning of the plate (left side of the plate) at 60 degrees. After the water jet strikes the plate, probably 80 percent of water goes to the right and the remaining...
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    Water jet strikes a plate and slows down due to frictional forces?

    [moderator note: super size font formats removed.] When a water jet strikes a plate (3m plate) at an angle (like 60 degrees), velocity of water decreases as it travels downstream. I know the major contributor that slows down water is probably wall frictional force but how to quantify this...
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