Application of mathematical and physical models in order to analyze the water oscillation dynamics in the accumulation

U ovom su radu opisane i uspoređene dvije vrste modela. Prvi model predstavlja matematički model, kojim se opisuje predviđanje brzine punjenja akumulacije i dinamike kolebanje vodnih rezervoara. Model je u izvornom obliku pripremljen za potrebe izračuna mjesečnih kolebanja vode, unutar ovoga diplomskog rada, te je modificiran za proračun znatno manjih dimenzija rezervoara u sekundnim vremenskim intervalima. Drugi model predstavlja fizikalni model koji je izrađen za potrebe diplomskog rada i predstavlja skalirani model akumulacije. U radu je opisan cijeli postupak izrade spomenutog modela, kao i način mjerenja potrebnih dimenzija volumena i površina akumulacije. Također su na modelu provedena ispitivanja punjenja rezervoara i kolebanje vode, te je opisan uređaj kojim se mjerenja provode. Rezultati mjerenja na eksperimentalnom fizikalnom modelu su uspoređeni s prilagođenim matematičkim modelom, a potom su rezultati usporedbe prikazani diskusijom te zaključcima.The aim and objective of this paper are description and comparison of the two prepared models. The first model is the mathematical model that describes the accumulation volume fill rate prediction and the water reservoir oscillation dynamic. The model is in the original form prepared for the purpose of the monthly water oscillation. Within this paper, the mathematical model modified in order to be applied for the significantly smaller dimension of the accumulation and time intervals (Δt= 1 second) prediction. The second model is the experimental physical model of the scaled accumulation model that is designed in order to perform experimental measurements. This paper describes the entire process of model design as well as the methods in order to measure the volume and accumulation surface data used. Experiments of the accumulation filling and the water oscillation were conducted on the prepared physical model and the measurements equipment is described. The measurement results on the experimental physical model are compared with the modified mathematical model, and then the comparison results are discussed and conclusions are made