Divfāzu šķidrumu plūsma gruntsūdens horizontā
Date
2011
Authors
Aleksāns, Oļģerts
Journal Title
Journal ISSN
Volume Title
Publisher
Latvijas Universitāte
Abstract
ANOTĀCIJA
Promocijas darbs ir veltīts divfāzu šėidruma plūsmas gruntsūdens horizontā
hidroăeoloăisko parametru noteikšanas metožu analīzei un to vietas mūsdienu
lietišėajā ăeoloăijā novērtēšanai, raksturojot to perspektīvas konkrētu hidroăeoloăisko
uzdevumus risināšanā, kā arī šo metožu attīstības tendenču un to iespēju nākotnē
pētīšanai.
Pētījumā pierādīts, ka pēc urbumu atsūknēšanas pārtraukšanas, līmeĦu
atjaunošanās periodā, veicot regulārus brīvās fāzes šėidruma slāĦa biezuma un tā
saskares virsmas ar ūdeni līmeĦa mērījumus atsūknējamajā urbumā, var iegūt datus,
kas Ĝauj noteikt brīvās fāzes šėidruma slāĦa aktuālo biezumu gruntsūdens horizontā.
Realizēta divfāzu šėidruma plūsmas gruntsūdens horizontā teorētisko datu
sistemātiska analīze un to pārbaude ar lauku eksperimentu rezultātiem. Lauku
eksperimentos iegūtajiem parametriem ir augsta korelācija ar empīriski
aprēėinātajiem rādītājiem, kas norāda uz šo metožu savstarpējo aizvietojamību
lietišėos un zinātniskos pētījumos.
Raksturvārdi: divfāzu šėidruma plūsma, nesajaucošies šėidrumi, brīvā fāze, aktuālais
slāĦa biezums, gruntsūdens horizonts, naftas produkti, piesārĦojums.
ABSTRACT The doctoral thesis is dedicated to analyze of two-phase liquids hydrogeological parameters determining methods and importance of these methods in contemporary applied geology. Also the doctoral thesis describes the applicability of studied methods for the different kind of hydro-geological solutions, as well as to investigate the development trends of those methods and their potential usage in the future. The study proves that after pumping from the well is terminated, during the period of level recovery based on the regular free-phase liquid layer thickness and its interface with water measurements in the pumping well, it is possible to obtain the data necessary for determining the actual thickness of free phase liquid layer in the aquifer. Systematic analysis of theoretical data of two-phase liquid flow in the shallow aquifer has been carried out and verified with the results of field experiments. The parameters obtained experimentally in the field have tight correlation with the empirically-estimated indicators that point to the interchangeability of these methods for applied and scientific research. Key words: diphase liquid flow, non-aqueous phase liquids, free phase, actual layer thickness, groundwater aquifer, oil products, pollution.
ABSTRACT The doctoral thesis is dedicated to analyze of two-phase liquids hydrogeological parameters determining methods and importance of these methods in contemporary applied geology. Also the doctoral thesis describes the applicability of studied methods for the different kind of hydro-geological solutions, as well as to investigate the development trends of those methods and their potential usage in the future. The study proves that after pumping from the well is terminated, during the period of level recovery based on the regular free-phase liquid layer thickness and its interface with water measurements in the pumping well, it is possible to obtain the data necessary for determining the actual thickness of free phase liquid layer in the aquifer. Systematic analysis of theoretical data of two-phase liquid flow in the shallow aquifer has been carried out and verified with the results of field experiments. The parameters obtained experimentally in the field have tight correlation with the empirically-estimated indicators that point to the interchangeability of these methods for applied and scientific research. Key words: diphase liquid flow, non-aqueous phase liquids, free phase, actual layer thickness, groundwater aquifer, oil products, pollution.
Description
Elektroniskā versija nesatur pielikumus
Keywords
Ģeoloģija , Ģeogrāfijas un zemes zinātnes