Gas bubble dynamics—experiment and fractal analysis

The loss of synchronization between air pressure fluctuations and liquid flow inside the nozzle during the chaotic bubble departures

“…(11)(12)(13)(14)(15)(16), describing the growth of the bubbles contains the following independent variables: p b , r, v, p c , x c , v c , and parameter v pp . The equations describing the liquid motion (Eqs.…”

“…It has also been found that the non-linear character of the pressure growth during the liquid penetration inside the nozzle amplifies the disturbance of initial condition of liquid penetration inside the nozzle. The nonlinear behaviours of the bubbling process have been reported, among others in [6,8,9,[11][12][13][14][15][16][17][18]. Furthermore, the non-linear behaviours of bubbles flow in the liquid have also been discussed in [11,[19][20][21][22][23][24][25][26].…”

Strength Analysis of a Large-Size Supporting Structure for an Offshore Wind Turbine

“…However, the main problem here is the lack of effective technical solutions for supporting structures, although the literature on supports for offshore wind turbines provides descriptions of various foundation types, such as monopiles [7][8][9] [21], and supports with submerged displacement hulls, a so-called Tension Leg Platform (TLP) solution [22][23]. What is noteworthy is huge technological progress in the field of numerical simulations, supported by experimental tests [24][25][26][27][28][29][30][31][32][33][34][35][36][37]. Visible progress is also observed in technologies of structure production [38][39][40] and structure operation monitoring [41][42][43][44][45].…”

Causality in Models of Thermal Processes in Ship Engine Rooms with the Use of Bond Graph (BG) Method

“…The social growth of expectations in terms of increasing the efficiency of machinery and equipment as well as reducing greenhouse gas emissions and air pollutants forced in recent years the intensification of research and development to improve the efficiency of heat exchange processes [4,18], the structural improvement of working machines and power equipment [7,14,16,24], improving the quality of diagnostics of these devices [11,12] and the improvement of efficiency of the manufacturing process of machine elements [6,9]. One of the more complex energy systems, which is covered by the above-mentioned development work is a ship's engine room.…”