巻号一覧
3 巻 (1981 - 1982)
- 3 号 p. 135-
- 2 号 p. 71-
- 1 号 p. 1-
3 巻, 2 号
選択された号の論文の4件中1～4を表示しています
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山田 幸生1981 年 3 巻 2 号 p. 71-86
発行日: 1981/10/20
公開日: 2009/08/07
ジャーナル フリーPDF形式でダウンロード (1368K) -
地熱地域における自然電位異常の1つのメカニズムとして石戸 経士1981 年 3 巻 2 号 p. 87-100
発行日: 1981/10/20
公開日: 2010/02/05
ジャーナル フリーTwo-dimensional numerical calculations of streaming potential associated with hydrothermal circulation in permeable crust have been carried out. It is assumed that the streaming potential coefficient varies as temperature changes along the flow of water. Using the realistic values of the ζ-potential given by Ishido and Mizutani (1981), we showed that an observable self-potential anomaly can appear over a hot zone, where convective hot water is rising. The polarity is positive and the magnitude is 10 to 100 mV when the water flow rate is 10-8 to 10-7 m/s. Calculated selfpotential profiles are compared with recent observations at the Nigorikawa and the Hachimantai geothermal areas in Japan.抄録全体を表示PDF形式でダウンロード (1683K) -
層上面に部分的に広がる不透水部の長さの影響秋林 智, 湯原 浩三, 中西 繁隆, 田中 正三1981 年 3 巻 2 号 p. 101-114
発行日: 1981/10/20
公開日: 2010/02/05
ジャーナル フリーTheoretical and experimental studies are on effects of the length of impermeable portion at the top surface of the opened geothermal reservoir on a thermal convection. The reservoir is 9.2 in the reservoir aspect ratic and 2 in the heat source aspect ratio. The results obtained are as follows:(1) As the length of the impermeable portion increases, the value of stream function decreases and the convective current comes to be excel in a horizontal direction. So the convective current is influenced by the length of impermeable portion.(2) As the length of the impermeable portion increases, both temperatures within the reservoir and on the top surface rise further, which reflect the varation of the convective current mentioned above.(3) The discharge velocity of water through the top surface becomes maximum at the edge of the impermeable portion, and the discharge area of water is reflectively narrow.(4) The heat discharged through the top surface increases abruptly at the discharge area of water and the heat transported by water is above 10 times as large as the quantity transported by Newton's law of coling, and both discharges of water and heat per an unit time through the top surface decrease gradually as the length of the impermeable portion increases. These facts show that the discharged water plays an important role in a process of the discharge of heat.抄録全体を表示PDF形式でダウンロード (2252K) -
平川 誠一, 三津石 裕士1981 年 3 巻 2 号 p. 115-130
発行日: 1981/10/20
公開日: 2010/02/05
ジャーナル フリー地熱坑井の坑口データから管内の圧力および温度変化を求めるための計算手順を整理し,実在坑井データと計算結果とを比較し,ここで開発した数値モデルの有用性ならびに限界を明らかにした。抄録全体を表示PDF形式でダウンロード (693K)
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