Naslov
Lagrangian Differencing Dynamics for microgravity sloshing

Autori
Bašić, Josip ; Blagojević, Branko ; Bašić, Martina ; Klarin, Branko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
6th International Conference on Smart and Sustainable Technologies (SpliTech) / - , 2021

Skup
6th International Conference on Smart and Sustainable Technologies (SpliTech)

Mjesto i datum
Bol, Hrvatska, 08.09.2021. - 11.09.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Lagrangian differencing dynamics ; Meshless method ; Non-Newtonian flow ; sloshing ; microgravity

Sažetak
Accurate prediction of sloshing is mandatory for spacecraft and rocket design, i.e. for understanding propellant behaviour and response during spacecraft flight operations. The predictions ensure adequate settling before engine burn, and reliable vehicle control during the mission. Lagrangian and mesh-free methods are attractive for slosh dynamics prediction due to their flexibility on imposing the vessel motions and ability to capture complex and violent advection of fluid inside the vessel. A novel method named Lagrangian Differencing Dynamics (LDD) is introduced for analysing slosh dynamics, which is meshless, Lagrangian, volume-conservative and based on second- order consistent Lagrangian differences. It intrinsically handles violent fluid-structure interaction with free surface fragmentation, while providing second-order accurate pressure and velocity fields. This study validates the LDD method by simulating a slosh event inside the vessel with variable motion in reduced gravity.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Tehnologija prometa i transport, Zrakoplovstvo, raketna i svemirska tehnika, Interdisciplinarne tehničke znanosti

POVEZANOST RADA