# 🧪 High-MW linear polymer in water, flow curve (community)

`dataset id: caggioni_linear_polymer_flow`

Equilibrium flow sweep of a high-molecular-weight linear polymer in aqueous solution: 51 points from 0.01 to 1000 s^-1 at 25 C. A near-ideal Carreau fluid: zero-shear plateau crossing into a power-law thinning regime. The companion oscillatory sweeps from the same TRIOS file live in caggioni_linear_polymer_amplitude_sweep and caggioni_linear_polymer_frequency_sweep (used for Cox-Merz and Delaware-Rutgers checks). Originally measured for the rheofit Carreau walkthrough.

## 📈 Data

![Data for caggioni_linear_polymer_flow](_plots/caggioni_linear_polymer_flow.png)

## 🗂️ Metadata

| Field | Value |
| --- | --- |
| Material | High-molecular-weight linear polymer in water |
| Material kind | polymer solution |
| Source | Unpublished (community contribution) |
| DOI | — |
| Figure | — |
| Measurement type | flow_curve |
| Geometry | not reported |
| Temperature | 25 °C |
| Protocol | Equilibrium flow sweep, shear rate 1000 -> 0.01 s^-1 (high to low), 51 points. |
| Provenance | community, digitized: no |

## 🧫 Samples

| Sample id | Label |
| --- | --- |
| linear_polymer | High-MW linear polymer, aqueous solution |

## 📋 Data columns

| Role | Column | Units |
| --- | --- | --- |
| `x` | `shear_rate_1/s` | 1/s |
| `y` | `stress_Pa` | Pa |
| `sample` | `sample_id` | — |

## 🏷️ Tags

`polymer solution` `flow-curve` `carreau`