What is the purpose of the “Utilize ONLY square law driving forces” option in Semisim, TLPsim and Sparsim?
The details of TLP performance can be sensitive to the square-law loading from the orbital motion of water particles in waves. Many issues complicate the simulation of this process, including: * wave amplitude relative to member size (the “Keulegan-Carpenter” number) * the effective Reynolds number (usually quantified in oscillatory environments by another dimensionless viscosity variable called “beta”) * member shape (For example, smoothly rounded members can have extremely different “drag” properties in oscillatory flow than rectangular members with sharp corners. This circumstance is quite different from uniform flow, in which the drag coefficients of square and round profiles are not radically different.) * member roughness * many current effects, including: (1) member local flow environment (e.g., is the member of interest in the turbulent down-current wake of another member or in a pristine uniform flow field uncontaminated by upstream structures) (2) current turbulence The purpo
