Verification Case 70

View Model     Problem Statement

PRODUCT: AFT Fathom (with SSL Module)

TITLE: FthVerify70.fth

REFERENCE: Wilson, Addie, Sellgren & Clift, Slurry Transport Using Centrifugal Pumps 3rd Edition, 2006, Publisher Springer, Page 145-147, Case Study 6.1

FLUID: Water/Sand

ASSUMPTIONS: Water temperature is assumed to be 4 C to match the specified fluid specific gravity of 1.  The pipe length and inlet pressure were not specified in the problem statement. They were assumed to be 100 m and 1 MPa, respectively. The choice of pipe length and inlet pressure does not affect the resulting calculations.  It was also assumed that Vt/Vts(Xi) = 0.55 for coarse sand. 

RESULTS:

Wilson, Addie, Sellgren & Clift Results:

Case Velocity  (meters/sec) Cv  (Decimal) Im  (m/m) SEC                         (kW-hr/mton-km)
Cvd 0.221 5.70 0.221 0.0609 0.289
Cvd 0.2 6.30 0.200 0.0612 0.315
Cvd 0.183 6.90 0.183 0.0636 0.358

AFT Fathom Results:

Case Velocity  (meters/sec) Cv  (Decimal) Im  (m/m) SEC                         (kW-hr/mton-km)
Cvd 0.221 5.72 0.221 0.0613 0.285
Cvd 0.2 6.32 0.200 0.0609 0.313
Cvd 0.183 6.91 0.183 0.0633 0.355

DISCUSSION:

There is close agreement between the results for AFT Fathom and the results for Wilson, Addie, Sellgren and Clift.

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