HGL and EGL at gradual contract region

  • Thread starter foo9008
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  • #1
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Homework Statement


in the two notes , the shape of graph at the gradual contraction region is are different , which is correct ? the first one ? or the second one ?
in the first picture , we can see that the gradient of graph of HGL is increasing downwards , whereas in the second photo , the gradient of HGL is decreasing downwards? in the second picture , the shape of EGL at gradual contaction region is also different with the first one ? which is correct ?

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  • #2
678
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anyone can comment which one is correct ?
 
  • #3
678
4
i have another example here , in this example we can see that the shape of HGL at nozzle is different with the one in 176 , so which shape is correct ?.
 

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  • #4
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or the shape of graph is not important here ? as long as the EGL drop and velocity increse , both graph are correct ?
 
  • #5
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anyone know to answer ?
 
  • #6
678
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bump
 
  • #7
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bump
 

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