Abstract
The problem of increasing the reliability of wind turbines exists in the development of new offshore oil and natural gas fields. Reducing emergency situations is necessary due to the autonomous operation of drilling rigs and bulk seaports in the subarctic and Arctic climate. The relevance of the topic is linked with the development of a methodology for theoretical and practical studies of gas dynamics when gas flows in a pipe, based on a mathematical model using new mathematical methods for calculation of excess speeds in case of wind gusts. Problems in the operation of offshore wind turbines arise with storm gusts of wind, which is comparable to the wave movement of the gas flow. Thus, the scientific problem of increasing the reliability of wind turbines in conditions of strong wind gusts is solved. The authors indicate a gross error in the calculations when approximating through the use of the Fourier series. The obtained results will allow us to solve one of the essential problems of modeling at this stage of its development, namely: to reduce the calculation time and the adequacy of the model built for similar installations and devices. Experimental studies of gas-dynamic flows are carried out on the example of a physical model of a wind turbine. In addition, a computer simulation of the gas-dynamic flow process was carried out. The use of new approximation schemes in processing the results of experiments and computer simulation can reduce the calculation error by 1.2 percent.
Highlights
IntroductionA reliable autonomous energy supply is an urgent practical task for oil and gas bulk seaports located in the arctic and subarctic climates
We propose a mathematical description of discontinuous gas-dynamic flows, which is made using new approximation methods
Based on the new methods for approximating piece linear functions by recursive functions, we developed a methodological approach to solve the problems of the gas dynamics of flows during their mathematical modeling and the use of difference schemes
Summary
A reliable autonomous energy supply is an urgent practical task for oil and gas bulk seaports located in the arctic and subarctic climates. This applies to the industrial part of drilling rigs. It should be noted that the development of new marine and coastal fields is impossible without the construction of heat and electricity sources. Since the newly developed fields are located at a considerable distance from the centralized power grids. The source of electricity supply can be a renewable energy source, for example, wind turbines
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