Abstract
The currently prevalent practice in hydrodynamic research is to assess radial wells by constructing a hydrodynamic model. Numerical modeling codes tended to limit the possibility of realistically representing the structural characteristics of a radial well (shaft and laterals), along with the groundwater abstraction mechanism via the known groundwater level within the laterals and the calibrated coefficient of their conductivity. Such limitations were offset by various boundary condition modeling techniques in order to produce a so-called 'representative' depiction of the radial well, which did not fail to affect the results. The objective of the present research is to assess the simulation of radial wells in MODFLOW- USG code, based on a numerical method of finite volumes. One of the radial wells at Belgrade's water supply source was selected for the case study, given that a complex groundwater regime change had been registered within its zone of influence. The results indicate that the method can be applied to simulate virtually all aspects and operational conditions of this type of well, with the highest level of representativeness.
Highlights
Nagoveštaj da se bunari sa horizontalnim drenovima mogu simulirati preko CLN paketa, dali su autori MODFLOW–USG [24]: „A CLN network may be useful for representing tile drains, radial collector wells, or other connected linear features.“ (u slobodnom prevodu: Mreža međusobno povezalih linijskih elemenata – CLN, može biti korisna za simulaciju cevnih drenaža, bunara sa horizontalnim drenovima ili drugih linijskih objekata)
The results indicate that the method can be applied to simulate virtually all aspects and operational conditions of this type of well, with the highest level of representativeness
Summary
Hidrodinamička analiza efekata rada BHD na beogradskom izvorištu podzemnih voda je u primeni već sedam decenija, što ne čudi ako se ima u vidu njihov privredni značaj. Čini se da su rezultati koje istraživači širom sveta i danas ostvaruju upotrebom tradicionalnih graničnih uslova za simulaciju vodoprijemnih delova BHD argument kojim ova metoda „poručuje“ da joj pripada nešto više od istorijske vrednosti. „suvih“ polja, postojanje softverskih paketa (modula) čijom upotrebom se mogu uspešno simulirati specifični uslovi kretanja podzemnih voda Nagoveštaj da se bunari sa horizontalnim drenovima mogu simulirati preko CLN paketa, dali su autori MODFLOW–USG [24]: „A CLN network may be useful for representing tile drains, radial collector wells, or other connected linear features.“ (u slobodnom prevodu: Mreža međusobno povezalih linijskih elemenata – CLN, može biti korisna za simulaciju cevnih drenaža, bunara sa horizontalnim drenovima ili drugih linijskih objekata). U ovom radu nije prikazana metodika izrade i analize formiranih modela, već samo mogućnosti različitih verzija i paketa softvera za manje ili više uspešnu simulaciju BHD
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