Flow augmentation

Konstam MA, Czerska B, Bohm M, Oren RM, Sadowski J, Khanal S, Abraham T, Wasler A, Dahm JB, Gavazzi A, Gradinac S, Legrand V, Mohacsi P, Poelzl G, Radovancevic B, Van Bakel AB, Zile MR, Cabuay B, Bartus K, Jansen P. Aortic flow augmentation a pilot study of hemodynamic and renal responses to a novel percutaneous intervention in decompensated heart failure. Circulation 2005 112 3107-3114. 

Yamada M, Huang Z, Dalkara T, Endres M, Laufs U, et al. 2000. Endothelial nitric oxide synthase-dependent cerebral blood flow augmentation by L-arginine after chronic statin treatment. J. Cereb. Blood Flow Metab. 20 709-17... 

Increasing the upstream flow by low flow augmentation e.g., releases from upstream reservoir storage or from diversions from nearby bodies of water... 

However, these latter two controls on effluent flow and upstream river flow also may affect the downstream transport through the velocity. A reduction in concentration at the outfall due to increased dilution from low flow augmentation may result in an increase in the concentration downstream because of an increased velocity. A reverse situation may occur if the flow is reduced. The concentration profile also depends on the decay rate. Thus, a final general control point is to ... 

The technological bounds (e.g., available storage for low flow augmentation) on the control... 

Our thesis is based on the implicit assumption that faster, more complete reperfusion will translate into better long-term patient outcomes. Three types of reperfusion strategies have been described (1) recanalization or antegrade reperfusion, (2) global reperfusion (flow augmentation or transarterial retrograde reperfusion), and (3) transvenous retrograde reperfusion (flow reversal) (Table 13.1 and Fig. 13.1). 

Global reperfusion (flow augmentation or transarterial retrograde reperfusion)... 

Figure 3 (a) Four-Node Example of Maximum Flow Problem b) Example Flow Pattern after One Flow Augmentation (c) Example Flow Pattern after Two Flow Augmentations. 

The most important application fields of drag reduction effect are fire-fighting, storm-sewer, flow augmentation, and pipes design for the transport of different fluids, with the performances and limits described by J.W. Hoyt in ref. [1080]. 

Other applications include storm-sewer flow augmentation, where added polymers can temporarily increase the flow capacity of storm sewers in times of heavy rain, etc. Another application has been for fire fighting. Water flow rates can be increased, smaller hose lines used, and nozzle pressures raised by the addition of polymer. 

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