1-20 of 23
Keywords: inertia coefficient
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31726-MS
... oil & gas variation pipe kc number inertia coefficient presented coefficient drag coefficient Introduction A fundamental consideration in riser design is the modeling of fluid forces on pipe. The nature of these forces is complex and depends on a wide range of parameters both...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1991
Paper Number: OTC-6518-MS
... drag and lift coefficients, leading to larger fluid forces (the decrease in the inertia coefficient (C m = 1+ C a ) is more than offset by volume increase}; (c) increases mass, reduces natural frequency, and leads to a larger dynamic amplification factor; (d) increases structural weight, both in water...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6407-MS
... leg dimension wave angle cylinder circular cylinder experiment inertia coefficient platform design stationary flow kcnumber drilling equipment wave loading experiment coefficient OTC 6407 Wave-Loading Experiments on Elements of Jackup Legs at Large Scale S.T. Schuurmans, Delft...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6314-MS
... in the literature do not provide the basis for an accurate assessment of the added mass applied in determining natural frequencies for the onset of structural vibrations. SOME FUNDAMENTALS OF ADDED MASS AND INERTIA FORCES By using the integrated load concept and the added mass or inertia coefficients the actual...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5368-MS
... ? = wave frequency and f = force as a function of time, t. The expression of the force coefficient can be derived in terms of inertia and drag coefficients, C M and C D , respectively, as and the force coefficient wave force coefficient upstream oil & gas inertia coefficient wave period...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5371-MS
... compared to the measured loads. Results show that total wave plus current loads are predictable if proper account is taken of model-scale drag and inertia coefficients. However, the drag coefficient needed to explain the loads in the wave plus current tests is considerably smaller than expected from...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–9, 1984
Paper Number: OTC-4831-MS
... in. and frequencies ranging from 0.4 to 0.9 Hz that the Monson equation, with Stokes wave theory and constant drag and inertia coefficients of 1.2 and 1.8, respectively, provides good agreement with the measured maximum wave forces. The force variation over the entire wave cycle is also well represented...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1983
Paper Number: OTC-4612-MS
... marine growth ohmart median upstream oil & gas hydrodynamic loading loading wave height hurricane offshore technology conference inertia coefficient member diameter wave load member load drag coefficient variation wave shear total wave load axial load shear coefficient...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1983
Paper Number: OTC-4592-MS
... riser analysis riser drag coefficient coefficient reynolds number keulegan-carpenter number inertia coefficient maximum reynolds number sensitivity constant coefficient water depth hydrodynamic coefficient variation drilling riser mass coefficient production riser keu1egan...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1983
Paper Number: OTC-4616-MS
... speculative generalizations have dominated the calculation of wave forces on offshore structure for over thirty years, (see Sarpkaya 1 for a detailed discussion). Numerous attempts have been made to evaluate the drag and inertia coefficients and to extend Morison?s equation to far more complex situations...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1982
Paper Number: OTC-4227-MS
... and Trytten8 The drag, inertia, and the lift coefficients for a smooth cylinder (~ = DL/vT = 4000) are shown in Figs. 1 through 3. Clearly, the independence principle does not hold true for sinusoidally-oscillating flow about yawed smooth cylinders. Both the drag and inertia coefficients increase...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1980
Paper Number: OTC-3761-MS
...-shaped vertical water tunnel have been measured. The drag and inertia coefficients for the in-line force have been determined through the use of the Morison's equation and the Fourier analysis. The transverse force has been analyzed in terms of its maximum and minimum values, root-mean-square values...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1980
Paper Number: OTC-3775-MS
... ABSTRACT The lift, drag, and inertia coefficients have been determined experimentally for two cylinders at various positions subjected to harmonically oscillating flow. The cylinders were placed at 0, 30°, 60°, and 90° to the flow direction in separate series of tests. The spacing between...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1980
Paper Number: OTC-3760-MS
.... Permission to copy Is restricted to an abstract of not more than 300 words. ABSTRACT This paper presents a review of wave force predictions for rough and smooth cylinders. The Morison equation and some basic results for the drag and inertia coefficients in laboratory and ocean tests are reviewed. New results...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 1979
Paper Number: OTC-3539-MS
... ABSTRACT The interference effect in steady and time-dependent flows is briefly reviewed and the drag and inertia coefficients for two particular riser configurations subjected to harmonic flow are presented. INTRODUCTION A body's resistance to flow is strongly affected by what surrounds...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1978
Paper Number: OTC-3072-MS
...OTC 3072 DRAG AND INERTIA COEFFICIENTS FOR PARTIALLY-BURIED OFFSHORE PIPELINES by Michael E. Parker, Texas A&MUniversity, Exxon Co. U.S.A.; and John B. Herbich, Texas A &MUniversity 'lHIDRETICAL CONSIDERATIONS Dimensionless Forces The measured wave forces were converted to a dimensionless form...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1977
Paper Number: OTC-2898-MS
... ABSTRACT The in-line and transverse forces acting on circular cylinders placed near a plane boundary in a sinusoidally oscillating fluid in a U-shaped vertical water tunnel have been measured. The drag and inertia coefficients for the in-line force have been determined through the use...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1977
Paper Number: OTC-2901-MS
... from 1/800 to 1/50. The drag and inertia coefficients have been determined through the use of the Fourier analysis and the least squares method. The transverse force (lift) has been analysed in terms of its maximum and root-mean-square values. In addition, the frequency of vortex shedding...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1976
Paper Number: OTC-2676-MS
... and vertical and horizontal inertia coefficients. Where possible correlations of the values obtained with certain wave parameters were carried out. The data are plotted and summarized herein. The force coefficients discussed are of two types those associated with the measured kinematics, and those .derived...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1976
Paper Number: OTC-2533-MS
... from 0.002 to 0.02. The drag and inertia coefficients have been determined through the use of the Fourier analysis and the least squares method. The transverse force (lift) has been analysed in terms of its maximum, semi peak-to-peak, and root-mean-square values. In addition, the fre- quency of vortex...

Product(s) added to cart

Close Modal