Sentence examples for minimum head constraints from inspiring English sources

Open image in new window Fig. 2 Minimum head constraints for Sub-scenarios 1A, 3A (134 constraints) Open image in new window Fig. 3 Minimum head constraints for Sub-scenarios 1C, 3C (260 constraints) Open image in new window Fig. 4 Minimum head constraints for Sub-scenarios 2A, 4A (220 constraints) Open image in new window Fig. 5 Minimum head constraints for Sub-scenarios 2C, 4C (436 constraints).

The optimal pumping rates from groundwater in the case of minimum head constraints were 0.59 and 2.43 Mm3/d for Scenarios 1 and 2, respectively.

The optional value of each drawdown constraint was 2 m, which was specified at the same location of the minimum head constraints.

In addition, the number of shutdown wells was more in the case of minimum head constraints compared with the drawdown constraints.

The optimization model was formulated with the objective of maximizing water production from wells subjected to minimum head constraints and drawdown constraints, while limiting groundwater withdrawals to a maximum of 100 and 200 % of the rate pumped in 2010.

Open image in new window Fig. 6 Location of managed wells for scenarios 1 and 3 Open image in new window Fig. 7 Location of managed wells for scenarios 2 and 4 Table 2 Details of management scenarios, in which Hmin is the minimum head constraints and Dd is drawdown constraints Scenarios Sub-scenarios Constraints no. and type Decision variables no.

The first type of constraint used is an absolute lower bound (minimum head constraint) placed on a head at a specific location: h_{i,j,k,t} ge h_{i,j,k,t}^{l} (2.1 where ( h_{i,j,k,t}^{l}, ) is the specified lower bound on head at locations i, j, k at the end of the stress period t were set at 50%% of the predevelopment saturated thickness of the alluvial aquifer.

(2007), the PTC simulator is coupled with a differential evolution (DE) algorithm to maximize the total extracted freshwater volume from five pre-selected pumping locations (production wells) while satisfying minimum hydraulic head constraints at specified locations, ensuring no further intrusion of seawater.

Then flow distribution among sources is optimized and minimum heads are obtained from the setpoint curve.

The second type of head constraint used was drawdown of head at a specific location.

Furthermore, appropriate release of head constraint to allow human-like head kinematics is challenging with weight-drop models and actuators that move downwards to create impact.