Skip to main content

The Proceedings Fifth International Conference on Numerical Ship Hydrodynamics (1990) / Chapter Skim
Currently Skimming:

Numerical Solution of Viscous Flows about Submerged and Partly Submerged Bodies
Pages 607-616

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 607...
... Experimental investigation can provide global information at reasonable cost, while velocity and pressure measurement are difficult or even impossible and very expensive, instead numerical simulation gives the complete flow field quantities provided particular care is devoted to implement the numerical scheme. The validation of the numerical solution by a comparison with the experimental findings is necessary to verify the accuracy of scheme.
Read the entire page →
From page 608...
... The choice of Cartesian velocity components as dependent variables allows a simple form of the equations in the (I coordinate system. The adoption of other velocity components as unknowns require the introduction of higher order metric coefficients, as shown in Ref.
Read the entire page →
From page 609...
... 5 Results To test the complexities associated with the described numerical scheme, several cases have been chosen, each one enlighting a particular complexity. The flow in a steady domain and the flow in a domain where a boundary moves with a prescribed law have been considered as test cases before solving the free surface flow past a semicylinder.
Read the entire page →
From page 610...
... These preliminary numerical results assess that the numerical model provides good flow simulation in presence of steady and unsteady irregular domains. 5.3 Free surface flows free surface flows involve the difficulty of irregular and time dependent domain, where boundary moves according to the velocity field.
Read the entire page →
From page 611...
... Numerical Solution of 3-D Flows Periodic in One Direction and with Complex Geometries in 2-D" unpublished t9; Beam R.M., Warming R.F., "An Implicit FiniteDifference Algorithm for Hyperbolic Systems in Conservation-Law Form" J
Read the entire page →
From page 612...
... "Finite Difference Computations Using Boundary-fitted Coordinates for Free-surface Potential Flows Generated by Submerged Bodies" in Proceedings of the 2r~d Ir~tern.
Read the entire page →
From page 613...
... t =0.3 t = 0.4 t=O.S t=0.6 A t =0.7 E t =0.8 t =0.9 t = 1.0 Fig. 3 Instantaneous streamline plots within one period for the Dow in channel with a moving indentation 613
Read the entire page →
From page 614...
... C and D for the flow in a channel with a moving indentation 614 ~7 l 1 i 1 1 2 3 4 5 6 · Exper. ~ Numer.
Read the entire page →
From page 615...
... 6 Pressure contour map at t=0.8, Re = 400, Fr = 0.5 for the flow over a semicylindrical bump. The increment between two isolines is O.OS 615
Read the entire page →

Key Terms

  • boundary conditions
  • flow field
  • cpu time
  • time dependent
  • experimental results

  • numerical method
  • numerical solution
  • surface flows
  • numerical scheme
  • velocity field

  • moving indentation
  • velocity components
  • coordinate lines
  • physical domain
  • finite difference

  • time step
  • viscous flow
  • computational domain
  • time dependence
  • metric quantities

  • stream function
  • kinematic condition
  • flow past
  • viscous flows
  • surface flow

  • metric coefficients
  • velocity vector
  • prescribed law
  • cartesian velocity
  • main reason


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.